111520035457 has 2 divisors, whose sum is σ = 111520035458. Its totient is φ = 111520035456.

The previous prime is 111520035449. The next prime is 111520035461. The reversal of 111520035457 is 754530025111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82553357041 + 28966678416 = 287321^2 + 170196^2 .

It is an emirp because it is prime and its reverse (754530025111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111520035457 - 2³ = 111520035449 is a prime.

It is not a weakly prime, because it can be changed into another prime (111520035437) 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, 55760017728 + 55760017729.

It is an arithmetic number, because the mean of its divisors is an integer number (55760017729).

Almost surely, 2^111520035457 is an apocalyptic number.

It is an amenable number.

111520035457 is a deficient number, since it is larger than the sum of its proper divisors (1).

111520035457 is an equidigital number, since it uses as much as digits as its factorization.

111520035457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 34.

The spelling of 111520035457 in words is "one hundred eleven billion, five hundred twenty million, thirty-five thousand, four hundred fifty-seven".