113432031 has 24 divisors (see below), whose sum is σ = 167637600. Its totient is φ = 73884096.

The previous prime is 113432017. The next prime is 113432063. The reversal of 113432031 is 130234311.

It is not a de Polignac number, because 113432031 - 2⁹ = 113431519 is a prime.

It is a super-2 number, since 2×113432031² = 25733651313569922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113431995 and 113432013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111432031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189070 + ... + 189668.

It is an arithmetic number, because the mean of its divisors is an integer number (6984900).

Almost surely, 2^113432031 is an apocalyptic number.

113432031 is a deficient number, since it is larger than the sum of its proper divisors (54205569).

113432031 is a wasteful number, since it uses less digits than its factorization.

113432031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 113432031 is about 10650.4474553889. The cubic root of 113432031 is about 484.0741624739.

Adding to 113432031 its reverse (130234311), we get a palindrome (243666342).

The spelling of 113432031 in words is "one hundred thirteen million, four hundred thirty-two thousand, thirty-one".