31324342131 has 12 divisors (see below), whose sum is σ = 45266672880. Its totient is φ = 20873478960.

The previous prime is 31324342079. The next prime is 31324342151. The reversal of 31324342131 is 13124342313.

It is a happy number.

31324342131 is a `hidden beast` number, since 3 + 13 + 2 + 434 + 213 + 1 = 666.

It is not a de Polignac number, because 31324342131 - 2⁶ = 31324342067 is a prime.

It is a super-2 number, since 2×31324342131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31324342095 and 31324342104.

It is not an unprimeable number, because it can be changed into a prime (31324342151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763551 + ... + 803528.

It is an arithmetic number, because the mean of its divisors is an integer number (3772222740).

Almost surely, 2^31324342131 is an apocalyptic number.

31324342131 is a deficient number, since it is larger than the sum of its proper divisors (13942330749).

31324342131 is a wasteful number, since it uses less digits than its factorization.

31324342131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569306 (or 1569303 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 31324342131 its reverse (13124342313), we get a palindrome (44448684444).

The spelling of 31324342131 in words is "thirty-one billion, three hundred twenty-four million, three hundred forty-two thousand, one hundred thirty-one".