31300130032 has 10 divisors (see below), whose sum is σ = 60644001968. Its totient is φ = 15650065008.

The previous prime is 31300130021. The next prime is 31300130033. The reversal of 31300130032 is 23003100313.

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 1956258127 = 31300130032 / (3 + 1 + 3 + 0 + 0 + 1 + 3 + 0 + 0 + 3 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 31300129988 and 31300130015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31300130033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978129048 + ... + 978129079.

Almost surely, 2^31300130032 is an apocalyptic number.

It is an amenable number.

31300130032 is a deficient number, since it is larger than the sum of its proper divisors (29343871936).

31300130032 is a wasteful number, since it uses less digits than its factorization.

31300130032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956258135 (or 1956258129 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 31300130032 its reverse (23003100313), we get a palindrome (54303230345).

The spelling of 31300130032 in words is "thirty-one billion, three hundred million, one hundred thirty thousand, thirty-two".