20101011110999 has 24 divisors (see below), whose sum is σ = 25197255715968. Its totient is φ = 15894137165760.

The previous prime is 20101011110993. The next prime is 20101011111001. The reversal of 20101011110999 is 99901111010102.

It is a de Polignac number, because none of the positive numbers 2^k-20101011110999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101011110993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8862407 + ... + 10896984.

It is an arithmetic number, because the mean of its divisors is an integer number (1049885654832).

Almost surely, 2^{20101011110999} is an apocalyptic number.

20101011110999 is a deficient number, since it is larger than the sum of its proper divisors (5096244604969).

20101011110999 is a wasteful number, since it uses less digits than its factorization.

20101011110999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19761015 (or 19761008 counting only the distinct ones).

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

The spelling of 20101011110999 in words is "twenty trillion, one hundred one billion, eleven million, one hundred ten thousand, nine hundred ninety-nine".