1113553421 has 8 divisors (see below), whose sum is σ = 1130659200. Its totient is φ = 1096487280.

The previous prime is 1113553417. The next prime is 1113553423. The reversal of 1113553421 is 1243553111.

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 1113553421 - 2² = 1113553417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113553423) 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, 49400 + ... + 68318.

It is an arithmetic number, because the mean of its divisors is an integer number (141332400).

Almost surely, 2^1113553421 is an apocalyptic number.

It is an amenable number.

1113553421 is a deficient number, since it is larger than the sum of its proper divisors (17105779).

1113553421 is an equidigital number, since it uses as much as digits as its factorization.

1113553421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19819.

The product of its digits is 1800, while the sum is 26.

The square root of 1113553421 is about 33369.9478722997. The cubic root of 1113553421 is about 1036.5024957691.

The spelling of 1113553421 in words is "one billion, one hundred thirteen million, five hundred fifty-three thousand, four hundred twenty-one".