113504431 has 2 divisors, whose sum is σ = 113504432. Its totient is φ = 113504430.

The previous prime is 113504411. The next prime is 113504449. The reversal of 113504431 is 134405311.

It is a strong prime.

It is an emirp because it is prime and its reverse (134405311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113504431 - 2⁵ = 113504399 is a prime.

It is a super-2 number, since 2×113504431² = 25766511713267522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113504411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56752215 + 56752216.

It is an arithmetic number, because the mean of its divisors is an integer number (56752216).

Almost surely, 2^113504431 is an apocalyptic number.

113504431 is a deficient number, since it is larger than the sum of its proper divisors (1).

113504431 is an equidigital number, since it uses as much as digits as its factorization.

113504431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 113504431 is about 10653.8458314357. The cubic root of 113504431 is about 484.1771302020.

Adding to 113504431 its reverse (134405311), we get a palindrome (247909742).

The spelling of 113504431 in words is "one hundred thirteen million, five hundred four thousand, four hundred thirty-one".