1131231022200 has 144 divisors (see below), whose sum is σ = 3799455387000. Its totient is φ = 301629484800.

The previous prime is 1131231022177. The next prime is 1131231022217. The reversal of 1131231022200 is 22201321311.

1131231022200 is a `hidden beast` number, since 1 + 1 + 312 + 310 + 22 + 20 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20310390 + ... + 20366010.

Almost surely, 2^{1131231022200} is an apocalyptic number.

1131231022200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131231022200 is an abundant number, since it is smaller than the sum of its proper divisors (2668224364800).

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

1131231022200 is a wasteful number, since it uses less digits than its factorization.

1131231022200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66942 (or 66930 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1131231022200 its reverse (22201321311), we get a palindrome (1153432343511).

The spelling of 1131231022200 in words is "one trillion, one hundred thirty-one billion, two hundred thirty-one million, twenty-two thousand, two hundred".