1120120321 has 4 divisors (see below), whose sum is σ = 1120280644. Its totient is φ = 1119960000.

The previous prime is 1120120307. The next prime is 1120120349. The reversal of 1120120321 is 1230210211.

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 10497600 + 1109622721 = 3240^2 + 33311^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120120321 - 2⁵ = 1120120289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120120301) 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, 69180 + ... + 83821.

It is an arithmetic number, because the mean of its divisors is an integer number (280070161).

Almost surely, 2^1120120321 is an apocalyptic number.

It is an amenable number.

1120120321 is a deficient number, since it is larger than the sum of its proper divisors (160323).

1120120321 is an equidigital number, since it uses as much as digits as its factorization.

1120120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160322.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1120120321 is about 33468.1986518546. The cubic root of 1120120321 is about 1038.5360074959.

Adding to 1120120321 its reverse (1230210211), we get a palindrome (2350330532).

The spelling of 1120120321 in words is "one billion, one hundred twenty million, one hundred twenty thousand, three hundred twenty-one".