31032040131 has 24 divisors (see below), whose sum is σ = 45803297280. Its totient is φ = 20236561776.

The previous prime is 31032040103. The next prime is 31032040139. The reversal of 31032040131 is 13104023013.

31032040131 is a `hidden beast` number, since 310 + 320 + 4 + 0 + 1 + 31 = 666.

It is not a de Polignac number, because 31032040131 - 2¹¹ = 31032038083 is a prime.

It is a super-2 number, since 2×31032040131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31032040139) 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, 775296 + ... + 814338.

It is an arithmetic number, because the mean of its divisors is an integer number (1908470720).

Almost surely, 2^31032040131 is an apocalyptic number.

31032040131 is a deficient number, since it is larger than the sum of its proper divisors (14771257149).

31032040131 is a wasteful number, since it uses less digits than its factorization.

31032040131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40975 (or 40972 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31032040131 its reverse (13104023013), we get a palindrome (44136063144).

The spelling of 31032040131 in words is "thirty-one billion, thirty-two million, forty thousand, one hundred thirty-one".