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31030033000121 = 534141114138087
BaseRepresentation
bin1110000111000101111100…
…00110000010011010111001
311001212102221100111122222222
413003202332012002122321
513031344001422000441
6145555000025053425
76351563100416321
oct703427606023271
9131772840448888
1031030033000121
11998384374a501
1235919b3327275
13144117288557c
14793c0c38c281
1538c267ed6d4b
hex1c38be1826b9

31030033000121 has 8 divisors (see below), whose sum is σ = 31616271013824. Its totient is φ = 30443823345520.

The previous prime is 31030033000079. The next prime is 31030033000123. The reversal of 31030033000121 is 12100033003013.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31030033000121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31030033000121.

It is not an unprimeable number, because it can be changed into a prime (31030033000123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4874261 + ... + 9263826.

It is an arithmetic number, because the mean of its divisors is an integer number (3952033876728).

Almost surely, 231030033000121 is an apocalyptic number.

It is an amenable number.

31030033000121 is a deficient number, since it is larger than the sum of its proper divisors (586238013703).

31030033000121 is a wasteful number, since it uses less digits than its factorization.

31030033000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14179551.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31030033000121 its reverse (12100033003013), we get a palindrome (43130066003134).

The spelling of 31030033000121 in words is "thirty-one trillion, thirty billion, thirty-three million, one hundred twenty-one", and thus it is an aban number.

Divisors: 1 53 41411 2194783 14138087 749318611 585472320757 31030033000121