113140231 has 4 divisors (see below), whose sum is σ = 119095000. Its totient is φ = 107185464.

The previous prime is 113140211. The next prime is 113140241. The reversal of 113140231 is 132041311.

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

It is a cyclic number.

It is not a de Polignac number, because 113140231 - 2⁵ = 113140199 is a prime.

It is a super-2 number, since 2×113140231² = 25601423741466722, which 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 (113140211) 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, 2977356 + ... + 2977393.

It is an arithmetic number, because the mean of its divisors is an integer number (29773750).

Almost surely, 2^113140231 is an apocalyptic number.

113140231 is a deficient number, since it is larger than the sum of its proper divisors (5954769).

113140231 is an equidigital number, since it uses as much as digits as its factorization.

113140231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5954768.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 113140231 is about 10636.7396790558. The cubic root of 113140231 is about 483.6587179842.

Adding to 113140231 its reverse (132041311), we get a palindrome (245181542).

The spelling of 113140231 in words is "one hundred thirteen million, one hundred forty thousand, two hundred thirty-one".