21325131313032 has 32 divisors (see below), whose sum is σ = 53321241607200. Its totient is φ = 7107255327744.

The previous prime is 21325131313019. The next prime is 21325131313033. The reversal of 21325131313032 is 23031313152312.

It is a happy number.

21325131313032 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×21325131313032² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21325131313033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69955782 + ... + 70259957.

It is an arithmetic number, because the mean of its divisors is an integer number (1666288800225).

Almost surely, 2^{21325131313032} is an apocalyptic number.

It is an amenable number.

21325131313032 is an abundant number, since it is smaller than the sum of its proper divisors (31996110294168).

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

21325131313032 is a wasteful number, since it uses less digits than its factorization.

21325131313032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140222085 (or 140222081 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

Adding to 21325131313032 its reverse (23031313152312), we get a palindrome (44356444465344).

The spelling of 21325131313032 in words is "twenty-one trillion, three hundred twenty-five billion, one hundred thirty-one million, three hundred thirteen thousand, thirty-two".