113031001 has 4 divisors (see below), whose sum is σ = 113072400. Its totient is φ = 112989604.

The previous prime is 113030999. The next prime is 113031013. The reversal of 113031001 is 100130311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100130311 = 3433 ⋅29167.

It is a cyclic number.

It is not a de Polignac number, because 113031001 - 2¹ = 113030999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113031031) 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 3 ways as a sum of consecutive naturals, for example, 16291 + ... + 22168.

It is an arithmetic number, because the mean of its divisors is an integer number (28268100).

Almost surely, 2^113031001 is an apocalyptic number.

It is an amenable number.

113031001 is a deficient number, since it is larger than the sum of its proper divisors (41399).

113031001 is an equidigital number, since it uses as much as digits as its factorization.

113031001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41398.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 113031001 is about 10631.6038771203. The cubic root of 113031001 is about 483.5030201928.

Adding to 113031001 its reverse (100130311), we get a palindrome (213161312).

It can be divided in two parts, 1130 and 31001, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 113031001 in words is "one hundred thirteen million, thirty-one thousand, one".