111012440229991 has 2 divisors, whose sum is σ = 111012440229992. Its totient is φ = 111012440229990.

The previous prime is 111012440229979. The next prime is 111012440230007. The reversal of 111012440229991 is 199922044210111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111012440229991 - 2³⁹ = 110462684416103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111012440226991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506220114995 + 55506220114996.

It is an arithmetic number, because the mean of its divisors is an integer number (55506220114996).

Almost surely, 2^{111012440229991} is an apocalyptic number.

111012440229991 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012440229991 is an equidigital number, since it uses as much as digits as its factorization.

111012440229991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 46.

The spelling of 111012440229991 in words is "one hundred eleven trillion, twelve billion, four hundred forty million, two hundred twenty-nine thousand, nine hundred ninety-one".