20113133110989 has 24 divisors (see below), whose sum is σ = 28488428998848. Its totient is φ = 12619728929280.

The previous prime is 20113133110957. The next prime is 20113133110991. The reversal of 20113133110989 is 98901133131102.

It is a happy number.

It is not a de Polignac number, because 20113133110989 - 2⁵ = 20113133110957 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20113133110989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113133110589) 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, 43795224 + ... + 44252094.

It is an arithmetic number, because the mean of its divisors is an integer number (1187017874952).

Almost surely, 2^{20113133110989} is an apocalyptic number.

It is an amenable number.

20113133110989 is a deficient number, since it is larger than the sum of its proper divisors (8375295887859).

20113133110989 is a wasteful number, since it uses less digits than its factorization.

20113133110989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507685 (or 507668 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 42.

The spelling of 20113133110989 in words is "twenty trillion, one hundred thirteen billion, one hundred thirty-three million, one hundred ten thousand, nine hundred eighty-nine".