30521211412 has 72 divisors (see below), whose sum is σ = 57910597920. Its totient is φ = 14067691200.

The previous prime is 30521211397. The next prime is 30521211463. The reversal of 30521211412 is 21411212503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8603023 + ... + 8606569.

It is an arithmetic number, because the mean of its divisors is an integer number (804313860).

Almost surely, 2^30521211412 is an apocalyptic number.

It is an amenable number.

30521211412 is a deficient number, since it is larger than the sum of its proper divisors (27389386508).

30521211412 is a wasteful number, since it uses less digits than its factorization.

30521211412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749 (or 3728 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 30521211412 its reverse (21411212503), we get a palindrome (51932423915).

The spelling of 30521211412 in words is "thirty billion, five hundred twenty-one million, two hundred eleven thousand, four hundred twelve".