1131012200 has 48 divisors (see below), whose sum is σ = 2632063680. Its totient is φ = 451981760.

The previous prime is 1131012191. The next prime is 1131012251. The reversal of 1131012200 is 22101311.

It is a super-3 number, since 3×1131012200³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 295499 + ... + 299301.

It is an arithmetic number, because the mean of its divisors is an integer number (54834660).

Almost surely, 2^1131012200 is an apocalyptic number.

1131012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131012200 is an abundant number, since it is smaller than the sum of its proper divisors (1501051480).

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

1131012200 is a wasteful number, since it uses less digits than its factorization.

1131012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5306 (or 5297 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1131012200 is about 33630.5248249265. The cubic root of 1131012200 is about 1041.8913438203.

Adding to 1131012200 its reverse (22101311), we get a palindrome (1153113511).

The spelling of 1131012200 in words is "one billion, one hundred thirty-one million, twelve thousand, two hundred".