21331330131302 has 16 divisors (see below), whose sum is σ = 34464327754560. Its totient is φ = 9869330219112.

The previous prime is 21331330131281. The next prime is 21331330131337. The reversal of 21331330131302 is 20313103313312.

It is a congruent number.

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, 6527333168 + ... + 6527336435.

It is an arithmetic number, because the mean of its divisors is an integer number (2154020484660).

Almost surely, 2^{21331330131302} is an apocalyptic number.

21331330131302 is a deficient number, since it is larger than the sum of its proper divisors (13132997623258).

21331330131302 is a wasteful number, since it uses less digits than its factorization.

21331330131302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13054669667.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 21331330131302 its reverse (20313103313312), we get a palindrome (41644433444614).

The spelling of 21331330131302 in words is "twenty-one trillion, three hundred thirty-one billion, three hundred thirty million, one hundred thirty-one thousand, three hundred two".