111434144201969 has 2 divisors, whose sum is σ = 111434144201970. Its totient is φ = 111434144201968.

The previous prime is 111434144201959. The next prime is 111434144202089. The reversal of 111434144201969 is 969102441434111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109698140321344 + 1736003880625 = 10473688^2 + 1317575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111434144201969 is a prime.

It is a super-2 number, since 2×111434144201969² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111434144201909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55717072100984 + 55717072100985.

It is an arithmetic number, because the mean of its divisors is an integer number (55717072100985).

Almost surely, 2^{111434144201969} is an apocalyptic number.

It is an amenable number.

111434144201969 is a deficient number, since it is larger than the sum of its proper divisors (1).

111434144201969 is an equidigital number, since it uses as much as digits as its factorization.

111434144201969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 111434144201969 in words is "one hundred eleven trillion, four hundred thirty-four billion, one hundred forty-four million, two hundred one thousand, nine hundred sixty-nine".