21313122131302 has 8 divisors (see below), whose sum is σ = 32049408093912. Its totient is φ = 10629986100000.

The previous prime is 21313122131267. The next prime is 21313122131341. The reversal of 21313122131302 is 20313122131312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13287481824 + ... + 13287483427.

It is an arithmetic number, because the mean of its divisors is an integer number (4006176011739).

Almost surely, 2^{21313122131302} is an apocalyptic number.

21313122131302 is a deficient number, since it is larger than the sum of its proper divisors (10736285962610).

21313122131302 is a wasteful number, since it uses less digits than its factorization.

21313122131302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26574965654.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21313122131302 its reverse (20313122131312), we get a palindrome (41626244262614).

The spelling of 21313122131302 in words is "twenty-one trillion, three hundred thirteen billion, one hundred twenty-two million, one hundred thirty-one thousand, three hundred two".