30431030312 has 8 divisors (see below), whose sum is σ = 57058181850. Its totient is φ = 15215515152.

The previous prime is 30431030303. The next prime is 30431030327. The reversal of 30431030312 is 21303013403.

It can be written as a sum of positive squares in only one way, i.e., 18759685156 + 11671345156 = 136966^2 + 108034^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1901939387 + ... + 1901939402.

Almost surely, 2^30431030312 is an apocalyptic number.

It is an amenable number.

30431030312 is a deficient number, since it is larger than the sum of its proper divisors (26627151538).

30431030312 is a wasteful number, since it uses less digits than its factorization.

30431030312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3803878795 (or 3803878791 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30431030312 its reverse (21303013403), we get a palindrome (51734043715).

The spelling of 30431030312 in words is "thirty billion, four hundred thirty-one million, thirty thousand, three hundred twelve".