979999901000111 has 2 divisors, whose sum is σ = 979999901000112. Its totient is φ = 979999901000110.

The previous prime is 979999901000101. The next prime is 979999901000149. The reversal of 979999901000111 is 111000109999979.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-979999901000111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979999901000101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489999950500055 + 489999950500056.

It is an arithmetic number, because the mean of its divisors is an integer number (489999950500056).

Almost surely, 2^{979999901000111} is an apocalyptic number.

979999901000111 is a deficient number, since it is larger than the sum of its proper divisors (1).

979999901000111 is an equidigital number, since it uses as much as digits as its factorization.

979999901000111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3720087, while the sum is 65.

The spelling of 979999901000111 in words is "nine hundred seventy-nine trillion, nine hundred ninety-nine billion, nine hundred one million, one hundred eleven", and thus it is an aban number.