113232431 has 8 divisors (see below), whose sum is σ = 122120544. Its totient is φ = 104369760.

The previous prime is 113232421. The next prime is 113232437. The reversal of 113232431 is 134232311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113232431 is a prime.

It is a super-2 number, since 2×113232431² = 25643166860339522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113232437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3461 + ... + 15441.

It is an arithmetic number, because the mean of its divisors is an integer number (15265068).

Almost surely, 2^113232431 is an apocalyptic number.

113232431 is a deficient number, since it is larger than the sum of its proper divisors (8888113).

113232431 is a wasteful number, since it uses less digits than its factorization.

113232431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12721.

The product of its digits is 432, while the sum is 20.

The square root of 113232431 is about 10641.0728312516. The cubic root of 113232431 is about 483.7900630286.

Adding to 113232431 its reverse (134232311), we get a palindrome (247464742).

The spelling of 113232431 in words is "one hundred thirteen million, two hundred thirty-two thousand, four hundred thirty-one".