113221232315 has 4 divisors (see below), whose sum is σ = 135865478784. Its totient is φ = 90576985848.

The previous prime is 113221232309. The next prime is 113221232321. The reversal of 113221232315 is 513232122311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 513232122311 = 71 ⋅7228621441.

It is an interprime number because it is at equal distance from previous prime (113221232309) and next prime (113221232321).

It is a cyclic number.

It is not a de Polignac number, because 113221232315 - 2⁶ = 113221232251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11322123227 + ... + 11322123236.

It is an arithmetic number, because the mean of its divisors is an integer number (33966369696).

Almost surely, 2^113221232315 is an apocalyptic number.

113221232315 is a deficient number, since it is larger than the sum of its proper divisors (22644246469).

113221232315 is an equidigital number, since it uses as much as digits as its factorization.

113221232315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22644246468.

The product of its digits is 2160, while the sum is 26.

Adding to 113221232315 its reverse (513232122311), we get a palindrome (626453354626).

The spelling of 113221232315 in words is "one hundred thirteen billion, two hundred twenty-one million, two hundred thirty-two thousand, three hundred fifteen".