21310323012122 has 8 divisors (see below), whose sum is σ = 31970823685056. Its totient is φ = 10653381783772.

The previous prime is 21310323012119. The next prime is 21310323012149. The reversal of 21310323012122 is 22121032301312.

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

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, 889846178 + ... + 889870125.

It is an arithmetic number, because the mean of its divisors is an integer number (3996352960632).

Almost surely, 2^{21310323012122} is an apocalyptic number.

21310323012122 is a deficient number, since it is larger than the sum of its proper divisors (10660500672934).

21310323012122 is a wasteful number, since it uses less digits than its factorization.

21310323012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779722292.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21310323012122 its reverse (22121032301312), we get a palindrome (43431355313434).

The spelling of 21310323012122 in words is "twenty-one trillion, three hundred ten billion, three hundred twenty-three million, twelve thousand, one hundred twenty-two".