30131240412 has 48 divisors (see below), whose sum is σ = 86530744832. Its totient is φ = 7946700480.

The previous prime is 30131240411. The next prime is 30131240417. The reversal of 30131240412 is 21404213103.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131240411) 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, 13795264 + ... + 13797447.

Almost surely, 2^30131240412 is an apocalyptic number.

It is an amenable number.

30131240412 is an abundant number, since it is smaller than the sum of its proper divisors (56399504420).

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

30131240412 is a wasteful number, since it uses less digits than its factorization.

30131240412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27592738 (or 27592736 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 30131240412 its reverse (21404213103), we get a palindrome (51535453515).

The spelling of 30131240412 in words is "thirty billion, one hundred thirty-one million, two hundred forty thousand, four hundred twelve".