20000100010023 has 36 divisors (see below), whose sum is σ = 33612613489728. Its totient is φ = 11426246899200.

The previous prime is 20000100009983. The next prime is 20000100010061. The reversal of 20000100010023 is 32001000100002.

It is a happy number.

It is not a de Polignac number, because 20000100010023 - 2²¹ = 20000097912871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20000100009987 and 20000100010014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000100010523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2605911 + ... + 6840392.

It is an arithmetic number, because the mean of its divisors is an integer number (933683708048).

Almost surely, 2^{20000100010023} is an apocalyptic number.

20000100010023 is a deficient number, since it is larger than the sum of its proper divisors (13612513479705).

20000100010023 is a wasteful number, since it uses less digits than its factorization.

20000100010023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9451124 (or 9451114 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 20000100010023 its reverse (32001000100002), we get a palindrome (52001100110025).

The spelling of 20000100010023 in words is "twenty trillion, one hundred million, ten thousand, twenty-three".