30310131312 has 50 divisors (see below), whose sum is σ = 87726317448. Its totient is φ = 10103376672.

The previous prime is 30310131281. The next prime is 30310131403. The reversal of 30310131312 is 21313101303.

It is a happy number.

30310131312 is a `hidden beast` number, since 30 + 310 + 1 + 313 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11692428 + ... + 11695019.

Almost surely, 2^30310131312 is an apocalyptic number.

It is an amenable number.

30310131312 is an abundant number, since it is smaller than the sum of its proper divisors (57416186136).

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

30310131312 is a wasteful number, since it uses less digits than its factorization.

30310131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23387467 (or 23387452 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 30310131312 its reverse (21313101303), we get a palindrome (51623232615).

The spelling of 30310131312 in words is "thirty billion, three hundred ten million, one hundred thirty-one thousand, three hundred twelve".