31312234023 has 64 divisors (see below), whose sum is σ = 53274977280. Its totient is φ = 15925248000.

The previous prime is 31312234021. The next prime is 31312234097. The reversal of 31312234023 is 32043221313.

It is not a de Polignac number, because 31312234023 - 2¹ = 31312234021 is a prime.

It is a super-2 number, since 2×31312234023² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31312233984 and 31312234002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31312234021) 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, 4072743 + ... + 4080423.

It is an arithmetic number, because the mean of its divisors is an integer number (832421520).

Almost surely, 2^31312234023 is an apocalyptic number.

31312234023 is a deficient number, since it is larger than the sum of its proper divisors (21962743257).

31312234023 is a wasteful number, since it uses less digits than its factorization.

31312234023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8328.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31312234023 its reverse (32043221313), we get a palindrome (63355455336).

The spelling of 31312234023 in words is "thirty-one billion, three hundred twelve million, two hundred thirty-four thousand, twenty-three".