31323114031 has 24 divisors (see below), whose sum is σ = 37125673200. Its totient is φ = 26318793600.

The previous prime is 31323113971. The next prime is 31323114037. The reversal of 31323114031 is 13041132313.

It is not a de Polignac number, because 31323114031 - 2²¹ = 31321016879 is a prime.

It is a super-2 number, since 2×31323114031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31323113993 and 31323114011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323114037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71896 + ... + 260413.

It is an arithmetic number, because the mean of its divisors is an integer number (1546903050).

Almost surely, 2^31323114031 is an apocalyptic number.

31323114031 is a deficient number, since it is larger than the sum of its proper divisors (5802559169).

31323114031 is a wasteful number, since it uses less digits than its factorization.

31323114031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332391 (or 332380 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31323114031 its reverse (13041132313), we get a palindrome (44364246344).

The spelling of 31323114031 in words is "thirty-one billion, three hundred twenty-three million, one hundred fourteen thousand, thirty-one".