113340021 has 16 divisors (see below), whose sum is σ = 158906880. Its totient is φ = 71717360.

The previous prime is 113340011. The next prime is 113340043. The reversal of 113340021 is 120043311.

It is a cyclic number.

It is not a de Polignac number, because 113340021 - 2²² = 109145717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113340001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2770 + ... + 15308.

It is an arithmetic number, because the mean of its divisors is an integer number (9931680).

Almost surely, 2^113340021 is an apocalyptic number.

It is an amenable number.

113340021 is a deficient number, since it is larger than the sum of its proper divisors (45566859).

113340021 is a wasteful number, since it uses less digits than its factorization.

113340021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12696.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 113340021 is about 10646.1270422628. The cubic root of 113340021 is about 483.9432420409.

Adding to 113340021 its reverse (120043311), we get a palindrome (233383332).

The spelling of 113340021 in words is "one hundred thirteen million, three hundred forty thousand, twenty-one".