30311102412 has 72 divisors (see below), whose sum is σ = 79292216640. Its totient is φ = 9751553280.

The previous prime is 30311102399. The next prime is 30311102473. The reversal of 30311102412 is 21420111303.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4332237 + ... + 4339227.

Almost surely, 2^30311102412 is an apocalyptic number.

It is an amenable number.

30311102412 is an abundant number, since it is smaller than the sum of its proper divisors (48981114228).

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

30311102412 is a wasteful number, since it uses less digits than its factorization.

30311102412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11183 (or 11178 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 30311102412 its reverse (21420111303), we get a palindrome (51731213715).

The spelling of 30311102412 in words is "thirty billion, three hundred eleven million, one hundred two thousand, four hundred twelve".