31311230023 has 8 divisors (see below), whose sum is σ = 32396821200. Its totient is φ = 30226031808.

The previous prime is 31311229993. The next prime is 31311230029. The reversal of 31311230023 is 32003211313.

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 2^k-31311230023 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 (31311230029) 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, 68715 + ... + 259507.

It is an arithmetic number, because the mean of its divisors is an integer number (4049602650).

Almost surely, 2^31311230023 is an apocalyptic number.

31311230023 is a deficient number, since it is larger than the sum of its proper divisors (1085591177).

31311230023 is a wasteful number, since it uses less digits than its factorization.

31311230023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196481.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31311230023 its reverse (32003211313), we get a palindrome (63314441336).

The spelling of 31311230023 in words is "thirty-one billion, three hundred eleven million, two hundred thirty thousand, twenty-three".