21120513325032 has 32 divisors (see below), whose sum is σ = 57601399978080. Its totient is φ = 6400155552960.

The previous prime is 21120513324961. The next prime is 21120513325069. The reversal of 21120513325032 is 23052331502112.

It is a super-2 number, since 2×21120513325032² (a number of 27 digits) contains 22 as substring.

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, 40000971943 + ... + 40000972470.

It is an arithmetic number, because the mean of its divisors is an integer number (1800043749315).

Almost surely, 2^{21120513325032} is an apocalyptic number.

21120513325032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21120513325032 is an abundant number, since it is smaller than the sum of its proper divisors (36480886653048).

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

21120513325032 is a wasteful number, since it uses less digits than its factorization.

21120513325032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80001944433 (or 80001944429 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 21120513325032 its reverse (23052331502112), we get a palindrome (44172844827144).

The spelling of 21120513325032 in words is "twenty-one trillion, one hundred twenty billion, five hundred thirteen million, three hundred twenty-five thousand, thirty-two".