30231312128 has 18 divisors (see below), whose sum is σ = 60344533704. Its totient is φ = 15115655936.

The previous prime is 30231312113. The next prime is 30231312149. The reversal of 30231312128 is 82121313203.

It is a junction number, because it is equal to n+sod(n) for n = 30231312097 and 30231312106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59045276 + ... + 59045787.

Almost surely, 2^30231312128 is an apocalyptic number.

It is an amenable number.

30231312128 is a deficient number, since it is larger than the sum of its proper divisors (30113221576).

30231312128 is an equidigital number, since it uses as much as digits as its factorization.

30231312128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118091079 (or 118091065 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 30231312128 in words is "thirty billion, two hundred thirty-one million, three hundred twelve thousand, one hundred twenty-eight".