1131320211100 has 36 divisors (see below), whose sum is σ = 2455843178824. Its totient is φ = 452366182080.

The previous prime is 1131320211089. The next prime is 1131320211113. The reversal of 1131320211100 is 11120231311.

It is a happy number.

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, 1742682 + ... + 2302081.

Almost surely, 2^{1131320211100} is an apocalyptic number.

1131320211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131320211100 is an abundant number, since it is smaller than the sum of its proper divisors (1324522967724).

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

1131320211100 is a wasteful number, since it uses less digits than its factorization.

1131320211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4047574 (or 4047567 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1131320211100 its reverse (11120231311), we get a palindrome (1142440442411).

The spelling of 1131320211100 in words is "one trillion, one hundred thirty-one billion, three hundred twenty million, two hundred eleven thousand, one hundred".