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31031010023 = 1341101576431
BaseRepresentation
bin11100111001100101…
…111010001011100111
32222002121022122020112
4130321211322023213
51002022414310043
622131102123235
72145656142656
oct347145721347
988077278215
1031031010023
1112184218132
12602028051b
132c06b6bbc0
14170534919d
15c193d3518
hex73997a2e7

31031010023 has 16 divisors (see below), whose sum is σ = 34572085632. Its totient is φ = 27668640000.

The previous prime is 31031009987. The next prime is 31031010029. The reversal of 31031010023 is 32001013013.

It is a cyclic number.

It is not a de Polignac number, because 31031010023 - 210 = 31031008999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31031010029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234383 + ... + 342048.

It is an arithmetic number, because the mean of its divisors is an integer number (2160755352).

Almost surely, 231031010023 is an apocalyptic number.

31031010023 is a deficient number, since it is larger than the sum of its proper divisors (3541075609).

31031010023 is a wasteful number, since it uses less digits than its factorization.

31031010023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576586.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 31031010023 its reverse (32001013013), we get a palindrome (63032023036).

The spelling of 31031010023 in words is "thirty-one billion, thirty-one million, ten thousand, twenty-three".

Divisors: 1 13 41 101 533 1313 4141 53833 576431 7493603 23633671 58219531 307237723 756853903 2387000771 31031010023