113230421 has 4 divisors (see below), whose sum is σ = 119891052. Its totient is φ = 106569792.

The previous prime is 113230417. The next prime is 113230451. The reversal of 113230421 is 124032311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47458321 + 65772100 = 6889^2 + 8110^2 .

It is a cyclic number.

It is not a de Polignac number, because 113230421 - 2² = 113230417 is a prime.

It is a super-2 number, since 2×113230421² = 25642256479674482, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 6660613 = 113230421 / (1 + 1 + 3 + 2 + 3 + 0 + 4 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113230421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113230451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3330290 + ... + 3330323.

It is an arithmetic number, because the mean of its divisors is an integer number (29972763).

Almost surely, 2^113230421 is an apocalyptic number.

It is an amenable number.

113230421 is a deficient number, since it is larger than the sum of its proper divisors (6660631).

113230421 is an equidigital number, since it uses as much as digits as its factorization.

113230421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6660630.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 113230421 is about 10640.9783854681. The cubic root of 113230421 is about 483.7872004100.

Adding to 113230421 its reverse (124032311), we get a palindrome (237262732).

The spelling of 113230421 in words is "one hundred thirteen million, two hundred thirty thousand, four hundred twenty-one".