111541435553 has 2 divisors, whose sum is σ = 111541435554. Its totient is φ = 111541435552.

The previous prime is 111541435463. The next prime is 111541435609. The reversal of 111541435553 is 355534145111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65857930384 + 45683505169 = 256628^2 + 213737^2 .

It is a cyclic number.

It is not a de Polignac number, because 111541435553 - 2⁸ = 111541435297 is a prime.

It is not a weakly prime, because it can be changed into another prime (111541435153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55770717776 + 55770717777.

It is an arithmetic number, because the mean of its divisors is an integer number (55770717777).

Almost surely, 2^111541435553 is an apocalyptic number.

It is an amenable number.

111541435553 is a deficient number, since it is larger than the sum of its proper divisors (1).

111541435553 is an equidigital number, since it uses as much as digits as its factorization.

111541435553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90000, while the sum is 38.

The spelling of 111541435553 in words is "one hundred eleven billion, five hundred forty-one million, four hundred thirty-five thousand, five hundred fifty-three".