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31203302130122 = 220627756370343
BaseRepresentation
bin1110001100001000101011…
…01111010100000111001010
311002111000011202221110102012
413012010111233110013022
513042213330321130442
6150210333223535522
76400235625625613
oct706042557240712
9132430152843365
1031203302130122
119a40278647401
1235bb4aa8ba5a2
1314545c6ba39b5
1479c368286c0a
15391a09838582
hex1c6115bd41ca

31203302130122 has 8 divisors (see below), whose sum is σ = 46807222368096. Its totient is φ = 15600894674092.

The previous prime is 31203302130107. The next prime is 31203302130127. The reversal of 31203302130122 is 22103120330213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×312033021301222 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31203302130127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378143918 + ... + 378226425.

It is an arithmetic number, because the mean of its divisors is an integer number (5850902796012).

Almost surely, 231203302130122 is an apocalyptic number.

31203302130122 is a deficient number, since it is larger than the sum of its proper divisors (15603920237974).

31203302130122 is a wasteful number, since it uses less digits than its factorization.

31203302130122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756390972.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31203302130122 its reverse (22103120330213), we get a palindrome (53306422460335).

The spelling of 31203302130122 in words is "thirty-one trillion, two hundred three billion, three hundred two million, one hundred thirty thousand, one hundred twenty-two".

Divisors: 1 2 20627 41254 756370343 1512740686 15601651065061 31203302130122