31032210023 has 32 divisors (see below), whose sum is σ = 34891223040. Its totient is φ = 27455777280.

The previous prime is 31032209981. The next prime is 31032210031. The reversal of 31032210023 is 32001223013.

It is a cyclic number.

It is not a de Polignac number, because 31032210023 - 2¹² = 31032205927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31032209983 and 31032210010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31032210323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19166708 + ... + 19168326.

It is an arithmetic number, because the mean of its divisors is an integer number (1090350720).

Almost surely, 2^31032210023 is an apocalyptic number.

31032210023 is a deficient number, since it is larger than the sum of its proper divisors (3859013017).

31032210023 is a wasteful number, since it uses less digits than its factorization.

31032210023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31032210023 its reverse (32001223013), we get a palindrome (63033433036).

The spelling of 31032210023 in words is "thirty-one billion, thirty-two million, two hundred ten thousand, twenty-three".