113012003 has 4 divisors (see below), whose sum is σ = 121705248. Its totient is φ = 104318760.

The previous prime is 113011999. The next prime is 113012027. The reversal of 113012003 is 300210311.

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

It is not a de Polignac number, because 113012003 - 2² = 113011999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113012063) 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, 4346603 + ... + 4346628.

It is an arithmetic number, because the mean of its divisors is an integer number (30426312).

Almost surely, 2^113012003 is an apocalyptic number.

113012003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

113012003 is a deficient number, since it is larger than the sum of its proper divisors (8693245).

113012003 is an equidigital number, since it uses as much as digits as its factorization.

113012003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8693244.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 113012003 is about 10630.7103713722. The cubic root of 113012003 is about 483.4759299698.

Adding to 113012003 its reverse (300210311), we get a palindrome (413222314).

The spelling of 113012003 in words is "one hundred thirteen million, twelve thousand, three".