21130331535152 has 40 divisors (see below), whose sum is σ = 47447585517312. Its totient is φ = 8928309096000.

The previous prime is 21130331535091. The next prime is 21130331535211. The reversal of 21130331535152 is 25153513303112.

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, 1328609474 + ... + 1328625377.

Almost surely, 2^{21130331535152} is an apocalyptic number.

It is an amenable number.

21130331535152 is an abundant number, since it is smaller than the sum of its proper divisors (26317253982160).

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

21130331535152 is a wasteful number, since it uses less digits than its factorization.

21130331535152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657234937 (or 2657234931 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 35.

Adding to 21130331535152 its reverse (25153513303112), we get a palindrome (46283844838264).

The spelling of 21130331535152 in words is "twenty-one trillion, one hundred thirty billion, three hundred thirty-one million, five hundred thirty-five thousand, one hundred fifty-two".