111331120223 has 2 divisors, whose sum is σ = 111331120224. Its totient is φ = 111331120222.

The previous prime is 111331120211. The next prime is 111331120231. The reversal of 111331120223 is 322021133111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111331120223 - 2²⁰ = 111330071647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111331120195 and 111331120204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111331120253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55665560111 + 55665560112.

It is an arithmetic number, because the mean of its divisors is an integer number (55665560112).

Almost surely, 2^111331120223 is an apocalyptic number.

111331120223 is a deficient number, since it is larger than the sum of its proper divisors (1).

111331120223 is an equidigital number, since it uses as much as digits as its factorization.

111331120223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111331120223 its reverse (322021133111), we get a palindrome (433352253334).

The spelling of 111331120223 in words is "one hundred eleven billion, three hundred thirty-one million, one hundred twenty thousand, two hundred twenty-three".