111005001589 has 2 divisors, whose sum is σ = 111005001590. Its totient is φ = 111005001588.

The previous prime is 111005001581. The next prime is 111005001631. The reversal of 111005001589 is 985100500111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109763003025 + 1241998564 = 331305^2 + 35242^2 .

It is a cyclic number.

It is not a de Polignac number, because 111005001589 - 2³ = 111005001581 is a prime.

It is a super-2 number, since 2×111005001589² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111005001589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111005001581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55502500794 + 55502500795.

It is an arithmetic number, because the mean of its divisors is an integer number (55502500795).

Almost surely, 2^111005001589 is an apocalyptic number.

It is an amenable number.

111005001589 is a deficient number, since it is larger than the sum of its proper divisors (1).

111005001589 is an equidigital number, since it uses as much as digits as its factorization.

111005001589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 31.

The spelling of 111005001589 in words is "one hundred eleven billion, five million, one thousand, five hundred eighty-nine".