31334330131 has 16 divisors (see below), whose sum is σ = 33862761856. Its totient is φ = 28822905216.

The previous prime is 31334330129. The next prime is 31334330191. The reversal of 31334330131 is 13103343313.

It is a cyclic number.

It is not a de Polignac number, because 31334330131 - 2¹ = 31334330129 is a prime.

It is a super-2 number, since 2×31334330131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31334330096 and 31334330105.

It is not an unprimeable number, because it can be changed into a prime (31334330191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9371446 + ... + 9374788.

It is an arithmetic number, because the mean of its divisors is an integer number (2116422616).

Almost surely, 2^31334330131 is an apocalyptic number.

31334330131 is a deficient number, since it is larger than the sum of its proper divisors (2528431725).

31334330131 is a wasteful number, since it uses less digits than its factorization.

31334330131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5662.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 31334330131 its reverse (13103343313), we get a palindrome (44437673444).

The spelling of 31334330131 in words is "thirty-one billion, three hundred thirty-four million, three hundred thirty thousand, one hundred thirty-one".