113031003 has 4 divisors (see below), whose sum is σ = 150708008. Its totient is φ = 75354000.

The previous prime is 113030999. The next prime is 113031013. The reversal of 113031003 is 300130311.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 113031003 - 2² = 113030999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113031003.

It is not an unprimeable number, because it can be changed into a prime (113031013) 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, 18838498 + ... + 18838503.

It is an arithmetic number, because the mean of its divisors is an integer number (37677002).

Almost surely, 2^113031003 is an apocalyptic number.

113031003 is a deficient number, since it is larger than the sum of its proper divisors (37677005).

113031003 is an equidigital number, since it uses as much as digits as its factorization.

113031003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37677004.

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 113031003 is about 10631.6039711795. The cubic root of 113031003 is about 483.5030230445.

Adding to 113031003 its reverse (300130311), we get a palindrome (413161314).

The spelling of 113031003 in words is "one hundred thirteen million, thirty-one thousand, three".