113021003 has 8 divisors (see below), whose sum is σ = 114366720. Its totient is φ = 111683520.

The previous prime is 113020991. The next prime is 113021021. The reversal of 113021003 is 300120311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113021003 - 2⁶ = 113020939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113021053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28103 + ... + 31871.

It is an arithmetic number, because the mean of its divisors is an integer number (14295840).

Almost surely, 2^113021003 is an apocalyptic number.

113021003 is a deficient number, since it is larger than the sum of its proper divisors (1345717).

113021003 is a wasteful number, since it uses less digits than its factorization.

113021003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117.

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

The square root of 113021003 is about 10631.1336648544. The cubic root of 113021003 is about 483.4887639100.

Adding to 113021003 its reverse (300120311), we get a palindrome (413141314).

The spelling of 113021003 in words is "one hundred thirteen million, twenty-one thousand, three".