1011112001279 has 2 divisors, whose sum is σ = 1011112001280. Its totient is φ = 1011112001278.

The previous prime is 1011112001219. The next prime is 1011112001281. The reversal of 1011112001279 is 9721002111101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011112001279 - 2¹² = 1011111997183 is a prime.

Together with 1011112001281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011112001209) 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, 505556000639 + 505556000640.

It is an arithmetic number, because the mean of its divisors is an integer number (505556000640).

Almost surely, 2^{1011112001279} is an apocalyptic number.

1011112001279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011112001279 is an equidigital number, since it uses as much as digits as its factorization.

1011112001279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 26.

The spelling of 1011112001279 in words is "one trillion, eleven billion, one hundred twelve million, one thousand, two hundred seventy-nine".