1120531100 has 36 divisors (see below), whose sum is σ = 2618598024. Its totient is φ = 413734080.

The previous prime is 1120531079. The next prime is 1120531117. The reversal of 1120531100 is 11350211.

It is a congruent number.

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, 429674 + ... + 432273.

It is an arithmetic number, because the mean of its divisors is an integer number (72738834).

Almost surely, 2^1120531100 is an apocalyptic number.

1120531100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120531100 is an abundant number, since it is smaller than the sum of its proper divisors (1498066924).

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

1120531100 is a wasteful number, since it uses less digits than its factorization.

1120531100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861974 (or 861967 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 1120531100 is about 33474.3349448499. The cubic root of 1120531100 is about 1038.6629452410.

Adding to 1120531100 its reverse (11350211), we get a palindrome (1131881311).

The spelling of 1120531100 in words is "one billion, one hundred twenty million, five hundred thirty-one thousand, one hundred".