111374636412731 has 2 divisors, whose sum is σ = 111374636412732. Its totient is φ = 111374636412730.

The previous prime is 111374636412713. The next prime is 111374636412769. The reversal of 111374636412731 is 137214636473111.

Together with previous prime (111374636412713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111374636412731 - 2³⁴ = 111357456543547 is a prime.

It is a super-2 number, since 2×111374636412731² (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 111374636412731.

It is not a weakly prime, because it can be changed into another prime (111374636412791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55687318206365 + 55687318206366.

It is an arithmetic number, because the mean of its divisors is an integer number (55687318206366).

Almost surely, 2^{111374636412731} is an apocalyptic number.

111374636412731 is a deficient number, since it is larger than the sum of its proper divisors (1).

111374636412731 is an equidigital number, since it uses as much as digits as its factorization.

111374636412731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 50.

The spelling of 111374636412731 in words is "one hundred eleven trillion, three hundred seventy-four billion, six hundred thirty-six million, four hundred twelve thousand, seven hundred thirty-one".