11111031131100 has 36 divisors (see below), whose sum is σ = 32147916740184. Its totient is φ = 2962941634880.

The previous prime is 11111031131093. The next prime is 11111031131147. The reversal of 11111031131100 is 113113011111.

11111031131100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11111031131100.

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, 18518384919 + ... + 18518385518.

Almost surely, 2^{11111031131100} is an apocalyptic number.

11111031131100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111031131100 is an abundant number, since it is smaller than the sum of its proper divisors (21036885609084).

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

11111031131100 is a wasteful number, since it uses less digits than its factorization.

11111031131100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37036770454 (or 37036770447 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 15.

Adding to 11111031131100 its reverse (113113011111), we get a palindrome (11224144142211).

The spelling of 11111031131100 in words is "eleven trillion, one hundred eleven billion, thirty-one million, one hundred thirty-one thousand, one hundred".