113200431 has 4 divisors (see below), whose sum is σ = 150933912. Its totient is φ = 75466952.

The previous prime is 113200429. The next prime is 113200441. The reversal of 113200431 is 134002311.

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 113200431 - 2¹ = 113200429 is a prime.

It is a super-2 number, since 2×113200431² = 25628675157171522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 113200431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113200441) 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, 18866736 + ... + 18866741.

It is an arithmetic number, because the mean of its divisors is an integer number (37733478).

Almost surely, 2^113200431 is an apocalyptic number.

113200431 is a deficient number, since it is larger than the sum of its proper divisors (37733481).

113200431 is an equidigital number, since it uses as much as digits as its factorization.

113200431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37733480.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 113200431 is about 10639.5691172152. The cubic root of 113200431 is about 483.7444849774.

Adding to 113200431 its reverse (134002311), we get a palindrome (247202742).

The spelling of 113200431 in words is "one hundred thirteen million, two hundred thousand, four hundred thirty-one".