113003421 has 16 divisors (see below), whose sum is σ = 156219840. Its totient is φ = 72606080.

The previous prime is 113003413. The next prime is 113003447. The reversal of 113003421 is 124300311.

It is not a de Polignac number, because 113003421 - 2³ = 113003413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113003421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113003411) 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, 4675 + ... + 15743.

It is an arithmetic number, because the mean of its divisors is an integer number (9763740).

Almost surely, 2^113003421 is an apocalyptic number.

It is an amenable number.

113003421 is a deficient number, since it is larger than the sum of its proper divisors (43216419).

113003421 is a wasteful number, since it uses less digits than its factorization.

113003421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11196.

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

The square root of 113003421 is about 10630.3067218213. The cubic root of 113003421 is about 483.4636914602.

Adding to 113003421 its reverse (124300311), we get a palindrome (237303732).

The spelling of 113003421 in words is "one hundred thirteen million, three thousand, four hundred twenty-one".