113320323421 has 4 divisors (see below), whose sum is σ = 113321015712. Its totient is φ = 113319631132.

The previous prime is 113320323379. The next prime is 113320323433. The reversal of 113320323421 is 124323023311.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 124323023311 = 96353 ⋅1290287.

It is a cyclic number.

It is not a de Polignac number, because 113320323421 - 2⁷ = 113320323293 is a prime.

It is a super-2 number, since 2×113320323421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113320323461) 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, 52176 + ... + 478918.

It is an arithmetic number, because the mean of its divisors is an integer number (28330253928).

Almost surely, 2^113320323421 is an apocalyptic number.

It is an amenable number.

113320323421 is a deficient number, since it is larger than the sum of its proper divisors (692291).

113320323421 is an equidigital number, since it uses as much as digits as its factorization.

113320323421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692290.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 113320323421 its reverse (124323023311), we get a palindrome (237643346732).

The spelling of 113320323421 in words is "one hundred thirteen billion, three hundred twenty million, three hundred twenty-three thousand, four hundred twenty-one".