1131302100 has 36 divisors (see below), whose sum is σ = 3273234944. Its totient is φ = 301680480.

The previous prime is 1131302087. The next prime is 1131302147. The reversal of 1131302100 is 12031311.

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

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, 1885204 + ... + 1885803.

Almost surely, 2^1131302100 is an apocalyptic number.

1131302100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131302100 is an abundant number, since it is smaller than the sum of its proper divisors (2141932844).

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

1131302100 is a wasteful number, since it uses less digits than its factorization.

1131302100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771024 (or 3771017 counting only the distinct ones).

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

The square root of 1131302100 is about 33634.8346212673. The cubic root of 1131302100 is about 1041.9803550906.

Adding to 1131302100 its reverse (12031311), we get a palindrome (1143333411).

The spelling of 1131302100 in words is "one billion, one hundred thirty-one million, three hundred two thousand, one hundred".