111102021223 has 2 divisors, whose sum is σ = 111102021224. Its totient is φ = 111102021222.

The previous prime is 111102021179. The next prime is 111102021253. The reversal of 111102021223 is 322120201111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111102021223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111102021197 and 111102021206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111102021253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55551010611 + 55551010612.

It is an arithmetic number, because the mean of its divisors is an integer number (55551010612).

Almost surely, 2^111102021223 is an apocalyptic number.

111102021223 is a deficient number, since it is larger than the sum of its proper divisors (1).

111102021223 is an equidigital number, since it uses as much as digits as its factorization.

111102021223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 111102021223 its reverse (322120201111), we get a palindrome (433222222334).

The spelling of 111102021223 in words is "one hundred eleven billion, one hundred two million, twenty-one thousand, two hundred twenty-three".