20331101023 has 16 divisors (see below), whose sum is σ = 21929301504. Its totient is φ = 18779713920.

The previous prime is 20331100973. The next prime is 20331101041. The reversal of 20331101023 is 32010113302.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20331101023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20331100988 and 20331101006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331101083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275736 + ... + 341602.

It is an arithmetic number, because the mean of its divisors is an integer number (1370581344).

Almost surely, 2^20331101023 is an apocalyptic number.

20331101023 is a deficient number, since it is larger than the sum of its proper divisors (1598200481).

20331101023 is a wasteful number, since it uses less digits than its factorization.

20331101023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66222.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20331101023 its reverse (32010113302), we get a palindrome (52341214325).

The spelling of 20331101023 in words is "twenty billion, three hundred thirty-one million, one hundred one thousand, twenty-three".