30522731512 has 48 divisors (see below), whose sum is σ = 71694889560. Its totient is φ = 12074924736.

The previous prime is 30522731483. The next prime is 30522731531. The reversal of 30522731512 is 21513722503.

It is a super-2 number, since 2×30522731512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2989678 + ... + 2999869.

Almost surely, 2^30522731512 is an apocalyptic number.

It is an amenable number.

30522731512 is an abundant number, since it is smaller than the sum of its proper divisors (41172158048).

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

30522731512 is a wasteful number, since it uses less digits than its factorization.

30522731512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5989580 (or 5989569 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

Subtracting from 30522731512 its reverse (21513722503), we obtain a palindrome (9009009009).

The spelling of 30522731512 in words is "thirty billion, five hundred twenty-two million, seven hundred thirty-one thousand, five hundred twelve".