111430421279 has 2 divisors, whose sum is σ = 111430421280. Its totient is φ = 111430421278.

The previous prime is 111430421257. The next prime is 111430421357. The reversal of 111430421279 is 972124034111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111430421279 - 2³⁶ = 42710944543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111430424279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55715210639 + 55715210640.

It is an arithmetic number, because the mean of its divisors is an integer number (55715210640).

Almost surely, 2^111430421279 is an apocalyptic number.

111430421279 is a deficient number, since it is larger than the sum of its proper divisors (1).

111430421279 is an equidigital number, since it uses as much as digits as its factorization.

111430421279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 111430421279 in words is "one hundred eleven billion, four hundred thirty million, four hundred twenty-one thousand, two hundred seventy-nine".