1120331100 has 108 divisors (see below), whose sum is σ = 3770763864. Its totient is φ = 256072320.

The previous prime is 1120331083. The next prime is 1120331101. The reversal of 1120331100 is 11330211.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120331101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23407 + ... + 52806.

Almost surely, 2^1120331100 is an apocalyptic number.

1120331100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120331100 is an abundant number, since it is smaller than the sum of its proper divisors (2650432764).

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

1120331100 is a wasteful number, since it uses less digits than its factorization.

1120331100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76244 (or 76230 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1120331100 is about 33471.3474482280. The cubic root of 1120331100 is about 1038.6011456922.

Adding to 1120331100 its reverse (11330211), we get a palindrome (1131661311).

The spelling of 1120331100 in words is "one billion, one hundred twenty million, three hundred thirty-one thousand, one hundred".