31100023023 has 64 divisors (see below), whose sum is σ = 48596889600. Its totient is φ = 17555650560.

The previous prime is 31100022997. The next prime is 31100023037. The reversal of 31100023023 is 32032000113.

It is not a de Polignac number, because 31100023023 - 2⁶ = 31100022959 is a prime.

It is a super-2 number, since 2×31100023023² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31100022993 and 31100023011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31100021023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1705090 + ... + 1723232.

It is an arithmetic number, because the mean of its divisors is an integer number (759326400).

Almost surely, 2^31100023023 is an apocalyptic number.

31100023023 is a deficient number, since it is larger than the sum of its proper divisors (17496866577).

31100023023 is a wasteful number, since it uses less digits than its factorization.

31100023023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18272.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31100023023 its reverse (32032000113), we get a palindrome (63132023136).

The spelling of 31100023023 in words is "thirty-one billion, one hundred million, twenty-three thousand, twenty-three".