113432421 has 8 divisors (see below), whose sum is σ = 151293024. Its totient is φ = 75596720.

The previous prime is 113432419. The next prime is 113432443. The reversal of 113432421 is 124234311.

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

It is a cyclic number.

It is not a de Polignac number, because 113432421 - 2¹ = 113432419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113432401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12190 + ... + 19376.

It is an arithmetic number, because the mean of its divisors is an integer number (18911628).

Almost surely, 2^113432421 is an apocalyptic number.

It is an amenable number.

113432421 is a deficient number, since it is larger than the sum of its proper divisors (37860603).

113432421 is an equidigital number, since it uses as much as digits as its factorization.

113432421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12451.

The product of its digits is 576, while the sum is 21.

The square root of 113432421 is about 10650.4657644631. The cubic root of 113432421 is about 484.0747172517.

Adding to 113432421 its reverse (124234311), we get a palindrome (237666732).

The spelling of 113432421 in words is "one hundred thirteen million, four hundred thirty-two thousand, four hundred twenty-one".