21331013302001 has 48 divisors (see below), whose sum is σ = 24953390978880. Its totient is φ = 18117135682560.

The previous prime is 21331013301937. The next prime is 21331013302007. The reversal of 21331013302001 is 10020331013312.

It is not a de Polignac number, because 21331013302001 - 2⁶ = 21331013301937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21331013302007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39855170 + ... + 40386836.

It is an arithmetic number, because the mean of its divisors is an integer number (519862312060).

Almost surely, 2^{21331013302001} is an apocalyptic number.

It is an amenable number.

21331013302001 is a deficient number, since it is larger than the sum of its proper divisors (3622377676879).

21331013302001 is a wasteful number, since it uses less digits than its factorization.

21331013302001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531954 (or 531937 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21331013302001 its reverse (10020331013312), we get a palindrome (31351344315313).

The spelling of 21331013302001 in words is "twenty-one trillion, three hundred thirty-one billion, thirteen million, three hundred two thousand, one".