113421401 has 4 divisors (see below), whose sum is σ = 116059152. Its totient is φ = 110783652.

The previous prime is 113421397. The next prime is 113421403. The reversal of 113421401 is 104124311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 113421401 - 2² = 113421397 is a prime.

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 113421401.

It is not an unprimeable number, because it can be changed into a prime (113421403) 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 3 ways as a sum of consecutive naturals, for example, 1318811 + ... + 1318896.

It is an arithmetic number, because the mean of its divisors is an integer number (29014788).

Almost surely, 2^113421401 is an apocalyptic number.

It is an amenable number.

113421401 is a deficient number, since it is larger than the sum of its proper divisors (2637751).

113421401 is an equidigital number, since it uses as much as digits as its factorization.

113421401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637750.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 113421401 is about 10649.9484036309. The cubic root of 113421401 is about 484.0590407338.

Adding to 113421401 its reverse (104124311), we get a palindrome (217545712).

The spelling of 113421401 in words is "one hundred thirteen million, four hundred twenty-one thousand, four hundred one".