113421144 has 32 divisors (see below), whose sum is σ = 300233520. Its totient is φ = 35582976.

The previous prime is 113421109. The next prime is 113421163. The reversal of 113421144 is 441124311.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 113421144.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 138589 + ... + 139404.

Almost surely, 2^113421144 is an apocalyptic number.

It is an amenable number.

113421144 is an abundant number, since it is smaller than the sum of its proper divisors (186812376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113421144 is a wasteful number, since it uses less digits than its factorization.

113421144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278019 (or 278015 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 113421144 is about 10649.9363378379. The cubic root of 113421144 is about 484.0586751259.

Adding to 113421144 its reverse (441124311), we get a palindrome (554545455).

The spelling of 113421144 in words is "one hundred thirteen million, four hundred twenty-one thousand, one hundred forty-four".