31203311022323 has 16 divisors (see below), whose sum is σ = 34075553558400. Its totient is φ = 28337001194880.

The previous prime is 31203311022313. The next prime is 31203311022337. The reversal of 31203311022323 is 32322011330213.

It is a cyclic number.

It is not a de Polignac number, because 31203311022323 - 2⁴ = 31203311022307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31203311022292 and 31203311022301.

It is not an unprimeable number, because it can be changed into a prime (31203311022313) 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, 239262548 + ... + 239392926.

It is an arithmetic number, because the mean of its divisors is an integer number (2129722097400).

Almost surely, 2^{31203311022323} is an apocalyptic number.

31203311022323 is a deficient number, since it is larger than the sum of its proper divisors (2872242536077).

31203311022323 is a wasteful number, since it uses less digits than its factorization.

31203311022323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152962.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 31203311022323 its reverse (32322011330213), we get a palindrome (63525322352536).

The spelling of 31203311022323 in words is "thirty-one trillion, two hundred three billion, three hundred eleven million, twenty-two thousand, three hundred twenty-three".