31303130424 has 64 divisors (see below), whose sum is σ = 80401965600. Its totient is φ = 10148696064.

The previous prime is 31303130359. The next prime is 31303130429. The reversal of 31303130424 is 42403130313.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 31303130394 and 31303130403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31303130429) 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, 3598272 + ... + 3606960.

Almost surely, 2^31303130424 is an apocalyptic number.

It is an amenable number.

31303130424 is an abundant number, since it is smaller than the sum of its proper divisors (49098835176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31303130424 is a wasteful number, since it uses less digits than its factorization.

31303130424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12792 (or 12788 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31303130424 its reverse (42403130313), we get a palindrome (73706260737).

The spelling of 31303130424 in words is "thirty-one billion, three hundred three million, one hundred thirty thousand, four hundred twenty-four".