1120120290 has 24 divisors (see below), whose sum is σ = 2912312988. Its totient is φ = 298698720.

The previous prime is 1120120289. The next prime is 1120120301. The reversal of 1120120290 is 920210211.

It can be written as a sum of positive squares in 2 ways, for example, as 1118701809 + 1418481 = 33447^2 + 1191^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6222801 + ... + 6222980.

Almost surely, 2^1120120290 is an apocalyptic number.

1120120290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1120120290 is an abundant number, since it is smaller than the sum of its proper divisors (1792192698).

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

1120120290 is a wasteful number, since it uses less digits than its factorization.

1120120290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12445794 (or 12445791 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1120120290 is about 33468.1981887284. The cubic root of 1120120290 is about 1038.5359979152.

The spelling of 1120120290 in words is "one billion, one hundred twenty million, one hundred twenty thousand, two hundred ninety".