1131231113100 has 108 divisors (see below), whose sum is σ = 3868124846040. Its totient is φ = 274237843200.

The previous prime is 1131231113063. The next prime is 1131231113113. The reversal of 1131231113100 is 13111321311.

1131231113100 is a `hidden beast` number, since 1 + 1 + 312 + 31 + 11 + 310 + 0 = 666.

It is a super-2 number, since 2×1131231113100² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 57122985 + ... + 57142784.

Almost surely, 2^{1131231113100} is an apocalyptic number.

1131231113100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131231113100 is an abundant number, since it is smaller than the sum of its proper divisors (2736893732940).

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

1131231113100 is a wasteful number, since it uses less digits than its factorization.

1131231113100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114265800 (or 114265790 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 1131231113100 its reverse (13111321311), we get a palindrome (1144342434411).

The spelling of 1131231113100 in words is "one trillion, one hundred thirty-one billion, two hundred thirty-one million, one hundred thirteen thousand, one hundred".