1011112001999 has 16 divisors (see below), whose sum is σ = 1121287394304. Its totient is φ = 904103491200.

The previous prime is 1011112001953. The next prime is 1011112002011. The reversal of 1011112001999 is 9991002111101.

It is a cyclic number.

It is not a de Polignac number, because 1011112001999 - 2²⁸ = 1010843566543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011112001699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2941919 + ... + 3267584.

It is an arithmetic number, because the mean of its divisors is an integer number (70080462144).

Almost surely, 2^{1011112001999} is an apocalyptic number.

1011112001999 is a deficient number, since it is larger than the sum of its proper divisors (110175392305).

1011112001999 is a wasteful number, since it uses less digits than its factorization.

1011112001999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6209758.

The product of its (nonzero) digits is 1458, while the sum is 35.

The spelling of 1011112001999 in words is "one trillion, eleven billion, one hundred twelve million, one thousand, nine hundred ninety-nine".