111505423093 has 2 divisors, whose sum is σ = 111505423094. Its totient is φ = 111505423092.

The previous prime is 111505423031. The next prime is 111505423103. The reversal of 111505423093 is 390324505111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74363653809 + 37141769284 = 272697^2 + 192722^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111505423093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111505423013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55752711546 + 55752711547.

It is an arithmetic number, because the mean of its divisors is an integer number (55752711547).

Almost surely, 2^111505423093 is an apocalyptic number.

It is an amenable number.

111505423093 is a deficient number, since it is larger than the sum of its proper divisors (1).

111505423093 is an equidigital number, since it uses as much as digits as its factorization.

111505423093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 111505423093 in words is "one hundred eleven billion, five hundred five million, four hundred twenty-three thousand, ninety-three".