113313320321 has 4 divisors (see below), whose sum is σ = 113734559700. Its totient is φ = 112892080944.

The previous prime is 113313320303. The next prime is 113313320353. The reversal of 113313320321 is 123023313311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123023313311 = 461 ⋅266861851.

It can be written as a sum of positive squares in 2 ways, for example, as 63738071296 + 49575249025 = 252464^2 + 222655^2 .

It is a cyclic number.

It is not a de Polignac number, because 113313320321 - 2²⁶ = 113246211457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113313320521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210619286 + ... + 210619823.

It is an arithmetic number, because the mean of its divisors is an integer number (28433639925).

Almost surely, 2^113313320321 is an apocalyptic number.

It is an amenable number.

113313320321 is a deficient number, since it is larger than the sum of its proper divisors (421239379).

113313320321 is an equidigital number, since it uses as much as digits as its factorization.

113313320321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421239378.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 113313320321 its reverse (123023313311), we get a palindrome (236336633632).

The spelling of 113313320321 in words is "one hundred thirteen billion, three hundred thirteen million, three hundred twenty thousand, three hundred twenty-one".