113440230231 has 4 divisors (see below), whose sum is σ = 151253640312. Its totient is φ = 75626820152.

The previous prime is 113440230221. The next prime is 113440230251. The reversal of 113440230231 is 132032044311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113440230231 is a prime.

It is a super-2 number, since 2×113440230231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113440230221) 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, 18906705036 + ... + 18906705041.

It is an arithmetic number, because the mean of its divisors is an integer number (37813410078).

Almost surely, 2^113440230231 is an apocalyptic number.

113440230231 is a deficient number, since it is larger than the sum of its proper divisors (37813410081).

113440230231 is an equidigital number, since it uses as much as digits as its factorization.

113440230231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37813410080.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 113440230231 its reverse (132032044311), we get a palindrome (245472274542).

The spelling of 113440230231 in words is "one hundred thirteen billion, four hundred forty million, two hundred thirty thousand, two hundred thirty-one".