111131320223100 has 144 divisors (see below), whose sum is σ = 329776332963840. Its totient is φ = 28883311392000.

The previous prime is 111131320223057. The next prime is 111131320223107. The reversal of 111131320223100 is 1322023131111.

It is a super-2 number, since 2×111131320223100² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111131320223107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20742780 + ... + 25544579.

It is an arithmetic number, because the mean of its divisors is an integer number (2290113423360).

Almost surely, 2^{111131320223100} is an apocalyptic number.

111131320223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111131320223100 is an abundant number, since it is smaller than the sum of its proper divisors (218645012740740).

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

111131320223100 is a wasteful number, since it uses less digits than its factorization.

111131320223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46287580 (or 46287573 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 111131320223100 its reverse (1322023131111), we get a palindrome (112453343354211).

The spelling of 111131320223100 in words is "one hundred eleven trillion, one hundred thirty-one billion, three hundred twenty million, two hundred twenty-three thousand, one hundred".