31330030131 has 6 divisors (see below), whose sum is σ = 45254487980. Its totient is φ = 20886686748.

The previous prime is 31330030117. The next prime is 31330030141. The reversal of 31330030131 is 13103003313.

31330030131 is a `hidden beast` number, since 3 + 1 + 330 + 0 + 301 + 31 = 666.

It is not a de Polignac number, because 31330030131 - 2¹⁹ = 31329505843 is a prime.

It is a super-2 number, since 2×31330030131² (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 (31330030141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1740557221 + ... + 1740557238.

Almost surely, 2^31330030131 is an apocalyptic number.

31330030131 is a deficient number, since it is larger than the sum of its proper divisors (13924457849).

31330030131 is a wasteful number, since it uses less digits than its factorization.

31330030131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481114465 (or 3481114462 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

Adding to 31330030131 its reverse (13103003313), we get a palindrome (44433033444).

The spelling of 31330030131 in words is "thirty-one billion, three hundred thirty million, thirty thousand, one hundred thirty-one".