20111110010999 has 64 divisors (see below), whose sum is σ = 24159950438400. Its totient is φ = 16728714777600.

The previous prime is 20111110010993. The next prime is 20111110011001. The reversal of 20111110010999 is 99901001111102.

It is a de Polignac number, because none of the positive numbers 2^k-20111110010999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111110010993) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 365144327 + ... + 365199399.

It is an arithmetic number, because the mean of its divisors is an integer number (377499225600).

Almost surely, 2^{20111110010999} is an apocalyptic number.

20111110010999 is a deficient number, since it is larger than the sum of its proper divisors (4048840427401).

20111110010999 is a wasteful number, since it uses less digits than its factorization.

20111110010999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55405 (or 55391 counting only the distinct ones).

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

The spelling of 20111110010999 in words is "twenty trillion, one hundred eleven billion, one hundred ten million, ten thousand, nine hundred ninety-nine".