1117478321 has 4 divisors (see below), whose sum is σ = 1121727552. Its totient is φ = 1113229092.

The previous prime is 1117478317. The next prime is 1117478353. The reversal of 1117478321 is 1238747111.

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 a cyclic number.

It is not a de Polignac number, because 1117478321 - 2² = 1117478317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1117478371) 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, 2124221 + ... + 2124746.

It is an arithmetic number, because the mean of its divisors is an integer number (280431888).

Almost surely, 2^1117478321 is an apocalyptic number.

It is an amenable number.

1117478321 is a deficient number, since it is larger than the sum of its proper divisors (4249231).

1117478321 is an equidigital number, since it uses as much as digits as its factorization.

1117478321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249230.

The product of its digits is 9408, while the sum is 35.

The square root of 1117478321 is about 33428.7050452153. The cubic root of 1117478321 is about 1037.7188416476.

The spelling of 1117478321 in words is "one billion, one hundred seventeen million, four hundred seventy-eight thousand, three hundred twenty-one".