111323311331131 has 4 divisors (see below), whose sum is σ = 111323333128752. Its totient is φ = 111323289533512.

The previous prime is 111323311331119. The next prime is 111323311331159. The reversal of 111323311331131 is 131133113323111.

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 111323311331131 - 2¹³ = 111323311322939 is a prime.

It is a super-2 number, since 2×111323311331131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111323311331131.

It is not an unprimeable number, because it can be changed into a prime (111323311331231) 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, 1352250 + ... + 14982496.

It is an arithmetic number, because the mean of its divisors is an integer number (27830833282188).

Almost surely, 2^{111323311331131} is an apocalyptic number.

111323311331131 is a deficient number, since it is larger than the sum of its proper divisors (21797621).

111323311331131 is an equidigital number, since it uses as much as digits as its factorization.

111323311331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21797620.

The product of its digits is 1458, while the sum is 28.

Adding to 111323311331131 its reverse (131133113323111), we get a palindrome (242456424654242).

The spelling of 111323311331131 in words is "one hundred eleven trillion, three hundred twenty-three billion, three hundred eleven million, three hundred thirty-one thousand, one hundred thirty-one".