111312223223131 has 16 divisors (see below), whose sum is σ = 128558540371968. Its totient is φ = 94403299212000.

The previous prime is 111312223223059. The next prime is 111312223223143. The reversal of 111312223223131 is 131322322213111.

It is a cyclic number.

It is not a de Polignac number, because 111312223223131 - 2²¹ = 111312221125979 is a prime.

It is a super-2 number, since 2×111312223223131² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111312223223131.

It is not an unprimeable number, because it can be changed into a prime (111312223223431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51030675 + ... + 53167228.

It is an arithmetic number, because the mean of its divisors is an integer number (8034908773248).

Almost surely, 2^{111312223223131} is an apocalyptic number.

111312223223131 is a deficient number, since it is larger than the sum of its proper divisors (17246317148837).

111312223223131 is a wasteful number, since it uses less digits than its factorization.

111312223223131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104199522.

The product of its digits is 2592, while the sum is 28.

Adding to 111312223223131 its reverse (131322322213111), we get a palindrome (242634545436242).

The spelling of 111312223223131 in words is "one hundred eleven trillion, three hundred twelve billion, two hundred twenty-three million, two hundred twenty-three thousand, one hundred thirty-one".