111100131323131 has 4 divisors (see below), whose sum is σ = 111102311133000. Its totient is φ = 111097951513264.

The previous prime is 111100131323081. The next prime is 111100131323161. The reversal of 111100131323131 is 131323131001111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111100131323131 - 2²⁷ = 111099997105403 is a prime.

It is a super-2 number, since 2×111100131323131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111100131323161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1089828481 + ... + 1089930418.

It is an arithmetic number, because the mean of its divisors is an integer number (27775577783250).

Almost surely, 2^{111100131323131} is an apocalyptic number.

111100131323131 is a deficient number, since it is larger than the sum of its proper divisors (2179809869).

111100131323131 is an equidigital number, since it uses as much as digits as its factorization.

111100131323131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179809868.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 111100131323131 its reverse (131323131001111), we get a palindrome (242423262324242).

The spelling of 111100131323131 in words is "one hundred eleven trillion, one hundred billion, one hundred thirty-one million, three hundred twenty-three thousand, one hundred thirty-one".