113401431 has 64 divisors (see below), whose sum is σ = 206115840. Its totient is φ = 60635520.

The previous prime is 113401423. The next prime is 113401433. The reversal of 113401431 is 134104311.

It is not a de Polignac number, because 113401431 - 2³ = 113401423 is a prime.

It is a super-2 number, since 2×113401431² = 25719769105695522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113401433) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 88165 + ... + 89441.

It is an arithmetic number, because the mean of its divisors is an integer number (3220560).

Almost surely, 2^113401431 is an apocalyptic number.

113401431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113401431 is a deficient number, since it is larger than the sum of its proper divisors (92714409).

113401431 is a wasteful number, since it uses less digits than its factorization.

113401431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1327 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 113401431 is about 10649.0107991306. The cubic root of 113401431 is about 484.0306297921.

Adding to 113401431 its reverse (134104311), we get a palindrome (247505742).

The spelling of 113401431 in words is "one hundred thirteen million, four hundred one thousand, four hundred thirty-one".