21213231300132 has 24 divisors (see below), whose sum is σ = 49498835264256. Its totient is φ = 7070892019488.

The previous prime is 21213231300031. The next prime is 21213231300179. The reversal of 21213231300132 is 23100313231212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22657108 + ... + 23574795.

It is an arithmetic number, because the mean of its divisors is an integer number (2062451469344).

Almost surely, 2^{21213231300132} is an apocalyptic number.

It is an amenable number.

21213231300132 is an abundant number, since it is smaller than the sum of its proper divisors (28285603964124).

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

21213231300132 is a wasteful number, since it uses less digits than its factorization.

21213231300132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46270147 (or 46270145 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21213231300132 its reverse (23100313231212), we get a palindrome (44313544531344).

The spelling of 21213231300132 in words is "twenty-one trillion, two hundred thirteen billion, two hundred thirty-one million, three hundred thousand, one hundred thirty-two".