30311032312 has 32 divisors (see below), whose sum is σ = 62548530480. Its totient is φ = 13655810560.

The previous prime is 30311032277. The next prime is 30311032321. The reversal of 30311032312 is 21323011303.

It is a self number, because there is not a number n which added to its sum of digits gives 30311032312.

It is a congruent number.

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, 1514143 + ... + 1534030.

Almost surely, 2^30311032312 is an apocalyptic number.

It is an amenable number.

30311032312 is an abundant number, since it is smaller than the sum of its proper divisors (32237498168).

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

30311032312 is a wasteful number, since it uses less digits than its factorization.

30311032312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048303 (or 3048299 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30311032312 its reverse (21323011303), we get a palindrome (51634043615).

The spelling of 30311032312 in words is "thirty billion, three hundred eleven million, thirty-two thousand, three hundred twelve".