1113644103 has 32 divisors (see below), whose sum is σ = 1749710592. Its totient is φ = 621139200.

The previous prime is 1113644089. The next prime is 1113644183. The reversal of 1113644103 is 3014463111.

It is not a de Polignac number, because 1113644103 - 2⁵ = 1113644071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113644183) 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 31 ways as a sum of consecutive naturals, for example, 145123 + ... + 152603.

It is an arithmetic number, because the mean of its divisors is an integer number (54678456).

Almost surely, 2^1113644103 is an apocalyptic number.

1113644103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1113644103 is a deficient number, since it is larger than the sum of its proper divisors (636066489).

1113644103 is a wasteful number, since it uses less digits than its factorization.

1113644103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7855.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1113644103 is about 33371.3065821523. The cubic root of 1113644103 is about 1036.5306307965.

The spelling of 1113644103 in words is "one billion, one hundred thirteen million, six hundred forty-four thousand, one hundred three".