111115522123 has 2 divisors, whose sum is σ = 111115522124. Its totient is φ = 111115522122.

The previous prime is 111115522109. The next prime is 111115522169. The reversal of 111115522123 is 321225511111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111115522123 - 2⁹ = 111115521611 is a prime.

It is not a weakly prime, because it can be changed into another prime (111115532123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55557761061 + 55557761062.

It is an arithmetic number, because the mean of its divisors is an integer number (55557761062).

Almost surely, 2^111115522123 is an apocalyptic number.

111115522123 is a deficient number, since it is larger than the sum of its proper divisors (1).

111115522123 is an equidigital number, since it uses as much as digits as its factorization.

111115522123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 600, while the sum is 25.

The spelling of 111115522123 in words is "one hundred eleven billion, one hundred fifteen million, five hundred twenty-two thousand, one hundred twenty-three".