31022040131 has 4 divisors (see below), whose sum is σ = 31022428752. Its totient is φ = 31021651512.

The previous prime is 31022040089. The next prime is 31022040143. The reversal of 31022040131 is 13104022013.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 31022040131 - 2⁶ = 31022040067 is a prime.

It is a super-2 number, since 2×31022040131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31022040431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25940 + ... + 250433.

It is an arithmetic number, because the mean of its divisors is an integer number (7755607188).

Almost surely, 2^31022040131 is an apocalyptic number.

31022040131 is a deficient number, since it is larger than the sum of its proper divisors (388621).

31022040131 is a wasteful number, since it uses less digits than its factorization.

31022040131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388620.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31022040131 its reverse (13104022013), we get a palindrome (44126062144).

The spelling of 31022040131 in words is "thirty-one billion, twenty-two million, forty thousand, one hundred thirty-one".