21232120222313 has 48 divisors (see below), whose sum is σ = 28736266973568. Its totient is φ = 15265028275200.

The previous prime is 21232120222289. The next prime is 21232120222321. The reversal of 21232120222313 is 31322202123212.

It is not a de Polignac number, because 21232120222313 - 2¹² = 21232120218217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21232120222363) 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, 24267833 + ... + 25127513.

It is an arithmetic number, because the mean of its divisors is an integer number (598672228616).

Almost surely, 2^{21232120222313} is an apocalyptic number.

It is an amenable number.

21232120222313 is a deficient number, since it is larger than the sum of its proper divisors (7504146751255).

21232120222313 is a wasteful number, since it uses less digits than its factorization.

21232120222313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861966 (or 861955 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 21232120222313 its reverse (31322202123212), we get a palindrome (52554322345525).

The spelling of 21232120222313 in words is "twenty-one trillion, two hundred thirty-two billion, one hundred twenty million, two hundred twenty-two thousand, three hundred thirteen".