113213122211321 has 4 divisors (see below), whose sum is σ = 123505224230544. Its totient is φ = 102921020192100.

The previous prime is 113213122211297. The next prime is 113213122211323. The reversal of 113213122211321 is 123112221312311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 113213122211321 - 2²² = 113213118017017 is a prime.

It is a super-2 number, since 2×113213122211321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113213122211323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5146051009595 + ... + 5146051009616.

It is an arithmetic number, because the mean of its divisors is an integer number (30876306057636).

Almost surely, 2^{113213122211321} is an apocalyptic number.

113213122211321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113213122211321 is a deficient number, since it is larger than the sum of its proper divisors (10292102019223).

113213122211321 is a wasteful number, since it uses less digits than its factorization.

113213122211321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10292102019222.

The product of its digits is 864, while the sum is 26.

Adding to 113213122211321 its reverse (123112221312311), we get a palindrome (236325343523632).

The spelling of 113213122211321 in words is "one hundred thirteen trillion, two hundred thirteen billion, one hundred twenty-two million, two hundred eleven thousand, three hundred twenty-one".