1131103100 has 18 divisors (see below), whose sum is σ = 2454493944. Its totient is φ = 452441200.

The previous prime is 1131103097. The next prime is 1131103123. The reversal of 1131103100 is 13011311.

It is a happy number.

It is a super-2 number, since 2×1131103100² = 2558788445659220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5655416 + ... + 5655615.

Almost surely, 2^1131103100 is an apocalyptic number.

1131103100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131103100 is an abundant number, since it is smaller than the sum of its proper divisors (1323390844).

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

1131103100 is a wasteful number, since it uses less digits than its factorization.

1131103100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11311045 (or 11311038 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 1131103100 is about 33631.8762485830. The cubic root of 1131103100 is about 1041.9192555104.

Adding to 1131103100 its reverse (13011311), we get a palindrome (1144114411).

The spelling of 1131103100 in words is "one billion, one hundred thirty-one million, one hundred three thousand, one hundred".