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310120001221121 = 71353499128858173
BaseRepresentation
bin100011010000011010111000…
…0100000101011001000000001
31111200001011221002122111020122
41012200311300200223020001
5311122001230303033441
63015323054535550025
7122215300505524040
oct10640656040531001
91450034832574218
10310120001221121
118a8a5176972053
122a947400b2b315
1310407262a84450
145681c61108557
1525cbded8e934b
hex11a0d7082b201

310120001221121 has 32 divisors (see below), whose sum is σ = 389667118176000. Its totient is φ = 240257607992064.

The previous prime is 310120001221109. The next prime is 310120001221133. The reversal of 310120001221121 is 121122100021013.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (310120001221109) and next prime (310120001221133).

It is not a de Polignac number, because 310120001221121 - 226 = 310119934112257 is a prime.

It is a super-2 number, since 2×3101200012211212 (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 310120001221121.

It is not an unprimeable number, because it can be changed into a prime (310120001223121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62022410 + ... + 66835763.

It is an arithmetic number, because the mean of its divisors is an integer number (12177097443000).

Almost surely, 2310120001221121 is an apocalyptic number.

It is an amenable number.

310120001221121 is a deficient number, since it is larger than the sum of its proper divisors (79547116954879).

310120001221121 is a wasteful number, since it uses less digits than its factorization.

310120001221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128858745.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 310120001221121 its reverse (121122100021013), we get a palindrome (431242101242134).

The spelling of 310120001221121 in words is "three hundred ten trillion, one hundred twenty billion, one million, two hundred twenty-one thousand, one hundred twenty-one".

Divisors: 1 7 13 53 91 371 499 689 3493 4823 6487 26447 45409 185129 343811 2406677 128858173 902007211 1675156249 6829483169 11726093743 47806382183 64300228327 88783281197 450101598289 621482968379 835902968251 3407912101331 5851320777757 23855384709317 44302857317303 310120001221121