113003131 has 4 divisors (see below), whose sum is σ = 119650392. Its totient is φ = 106355872.

The previous prime is 113003129. The next prime is 113003161. The reversal of 113003131 is 131300311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131300311 = 59 ⋅2225429.

It is a cyclic number.

It is not a de Polignac number, because 113003131 - 2¹ = 113003129 is a prime.

It is a super-2 number, since 2×113003131² = 25539415231606322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113003161) 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, 3323605 + ... + 3323638.

It is an arithmetic number, because the mean of its divisors is an integer number (29912598).

Almost surely, 2^113003131 is an apocalyptic number.

113003131 is a deficient number, since it is larger than the sum of its proper divisors (6647261).

113003131 is an equidigital number, since it uses as much as digits as its factorization.

113003131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6647260.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 113003131 is about 10630.2930815665. The cubic root of 113003131 is about 483.4632778898.

Adding to 113003131 its reverse (131300311), we get a palindrome (244303442).

The spelling of 113003131 in words is "one hundred thirteen million, three thousand, one hundred thirty-one".