20113110201023 has 32 divisors (see below), whose sum is σ = 23618815959552. Its totient is φ = 16768915228800.

The previous prime is 20113110201013. The next prime is 20113110201043. The reversal of 20113110201023 is 32010201131102.

It is a de Polignac number, because none of the positive numbers 2^k-20113110201023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20113110200992 and 20113110201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113110201013) 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, 138008813 + ... + 138154473.

It is an arithmetic number, because the mean of its divisors is an integer number (738087998736).

Almost surely, 2^{20113110201023} is an apocalyptic number.

20113110201023 is a deficient number, since it is larger than the sum of its proper divisors (3505705758529).

20113110201023 is a wasteful number, since it uses less digits than its factorization.

20113110201023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147615.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20113110201023 its reverse (32010201131102), we get a palindrome (52123311332125).

The spelling of 20113110201023 in words is "twenty trillion, one hundred thirteen billion, one hundred ten million, two hundred one thousand, twenty-three".