113240222321 has 4 divisors (see below), whose sum is σ = 118163710272. Its totient is φ = 108316734372.

The previous prime is 113240222317. The next prime is 113240222327. The reversal of 113240222321 is 123222042311.

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 an emirpimes, since its reverse is a distinct semiprime: 123222042311 = 233 ⋅528849967.

It is a cyclic number.

It is not a de Polignac number, because 113240222321 - 2² = 113240222317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 4923487927 = 113240222321 / (1 + 1 + 3 + 2 + 4 + 0 + 2 + 2 + 2 + 3 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113240222327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2461743941 + ... + 2461743986.

It is an arithmetic number, because the mean of its divisors is an integer number (29540927568).

Almost surely, 2^113240222321 is an apocalyptic number.

It is an amenable number.

113240222321 is a deficient number, since it is larger than the sum of its proper divisors (4923487951).

113240222321 is an equidigital number, since it uses as much as digits as its factorization.

113240222321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4923487950.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 113240222321 its reverse (123222042311), we get a palindrome (236462264632).

The spelling of 113240222321 in words is "one hundred thirteen billion, two hundred forty million, two hundred twenty-two thousand, three hundred twenty-one".