111612533301989 has 2 divisors, whose sum is σ = 111612533301990. Its totient is φ = 111612533301988.

The previous prime is 111612533301967. The next prime is 111612533302063. The reversal of 111612533301989 is 989103335216111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70083401925889 + 41529131376100 = 8371583^2 + 6444310^2 .

It is a cyclic number.

It is not a de Polignac number, because 111612533301989 - 2²⁰ = 111612532253413 is a prime.

It is a super-2 number, since 2×111612533301989² (a number of 29 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 111612533301989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111612533001989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55806266650994 + 55806266650995.

It is an arithmetic number, because the mean of its divisors is an integer number (55806266650995).

Almost surely, 2^{111612533301989} is an apocalyptic number.

It is an amenable number.

111612533301989 is a deficient number, since it is larger than the sum of its proper divisors (1).

111612533301989 is an equidigital number, since it uses as much as digits as its factorization.

111612533301989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The spelling of 111612533301989 in words is "one hundred eleven trillion, six hundred twelve billion, five hundred thirty-three million, three hundred one thousand, nine hundred eighty-nine".