113431047 has 8 divisors (see below), whose sum is σ = 152087040. Its totient is φ = 75197880.

The previous prime is 113431039. The next prime is 113431057. The reversal of 113431047 is 740134311.

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

It is not a de Polignac number, because 113431047 - 2³ = 113431039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113431057) 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, 105079 + ... + 106152.

It is an arithmetic number, because the mean of its divisors is an integer number (19010880).

Almost surely, 2^113431047 is an apocalyptic number.

113431047 is a deficient number, since it is larger than the sum of its proper divisors (38655993).

113431047 is a wasteful number, since it uses less digits than its factorization.

113431047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211413.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 113431047 is about 10650.4012600465. The cubic root of 113431047 is about 484.0727627213.

Adding to 113431047 its reverse (740134311), we get a palindrome (853565358).

The spelling of 113431047 in words is "one hundred thirteen million, four hundred thirty-one thousand, forty-seven".