1131010200 has 144 divisors (see below), whose sum is σ = 3921028800. Its totient is φ = 291859200.

The previous prime is 1131010189. The next prime is 1131010201. The reversal of 1131010200 is 20101311.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131010201) 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, 45666 + ... + 65934.

Almost surely, 2^1131010200 is an apocalyptic number.

1131010200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131010200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1960514400).

1131010200 is an abundant number, since it is smaller than the sum of its proper divisors (2790018600).

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

1131010200 is a wasteful number, since it uses less digits than its factorization.

1131010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20322 (or 20310 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1131010200 is about 33630.4950900221. The cubic root of 1131010200 is about 1041.8907296849.

Adding to 1131010200 its reverse (20101311), we get a palindrome (1151111511).

The spelling of 1131010200 in words is "one billion, one hundred thirty-one million, ten thousand, two hundred".