1111101209979 has 16 divisors (see below), whose sum is σ = 1499982550560. Its totient is φ = 731514713600.

The previous prime is 1111101209963. The next prime is 1111101209987. The reversal of 1111101209979 is 9799021011111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1111101209979 - 2⁴ = 1111101209963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111101209979.

It is not an unprimeable number, because it can be changed into a prime (1111101209929) 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 in 15 ways as a sum of consecutive naturals, for example, 4595502 + ... + 4831235.

It is an arithmetic number, because the mean of its divisors is an integer number (93748909410).

Almost surely, 2^{1111101209979} is an apocalyptic number.

1111101209979 is a deficient number, since it is larger than the sum of its proper divisors (388881340581).

1111101209979 is a wasteful number, since it uses less digits than its factorization.

1111101209979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9427230.

The product of its (nonzero) digits is 10206, while the sum is 42.

The spelling of 1111101209979 in words is "one trillion, one hundred eleven billion, one hundred one million, two hundred nine thousand, nine hundred seventy-nine".