20101113789009 has 32 divisors (see below), whose sum is σ = 30967961596416. Its totient is φ = 11462136510720.

The previous prime is 20101113788993. The next prime is 20101113789019. The reversal of 20101113789009 is 90098731110102.

It is not a de Polignac number, because 20101113789009 - 2⁴ = 20101113788993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20101113789019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4120767 + ... + 7561940.

It is an arithmetic number, because the mean of its divisors is an integer number (967748799888).

Almost surely, 2^{20101113789009} is an apocalyptic number.

It is an amenable number.

20101113789009 is a deficient number, since it is larger than the sum of its proper divisors (10866847807407).

20101113789009 is a wasteful number, since it uses less digits than its factorization.

20101113789009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11685805.

The product of its (nonzero) digits is 27216, while the sum is 42.

The spelling of 20101113789009 in words is "twenty trillion, one hundred one billion, one hundred thirteen million, seven hundred eighty-nine thousand, nine".