111302043989 has 2 divisors, whose sum is σ = 111302043990. Its totient is φ = 111302043988.

The previous prime is 111302043977. The next prime is 111302044019. The reversal of 111302043989 is 989340203111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106834191025 + 4467852964 = 326855^2 + 66842^2 .

It is a cyclic number.

It is not a de Polignac number, because 111302043989 - 2²⁴ = 111285266773 is a prime.

It is a super-2 number, since 2×111302043989² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111302043929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55651021994 + 55651021995.

It is an arithmetic number, because the mean of its divisors is an integer number (55651021995).

Almost surely, 2^111302043989 is an apocalyptic number.

It is an amenable number.

111302043989 is a deficient number, since it is larger than the sum of its proper divisors (1).

111302043989 is an equidigital number, since it uses as much as digits as its factorization.

111302043989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 111302043989 in words is "one hundred eleven billion, three hundred two million, forty-three thousand, nine hundred eighty-nine".