30131311232 has 64 divisors (see below), whose sum is σ = 66085351200. Its totient is φ = 13570329600.

The previous prime is 30131311229. The next prime is 30131311261. The reversal of 30131311232 is 23211313103.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55307 + ... + 251637.

Almost surely, 2^30131311232 is an apocalyptic number.

30131311232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30131311232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33042675600).

30131311232 is an abundant number, since it is smaller than the sum of its proper divisors (35954039968).

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

30131311232 is a wasteful number, since it uses less digits than its factorization.

30131311232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196465 (or 196453 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30131311232 its reverse (23211313103), we get a palindrome (53342624335).

The spelling of 30131311232 in words is "thirty billion, one hundred thirty-one million, three hundred eleven thousand, two hundred thirty-two".