20323404023 has 8 divisors (see below), whose sum is σ = 21903329616. Its totient is φ = 18745848000.

The previous prime is 20323404019. The next prime is 20323404053. The reversal of 20323404023 is 32040432302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20323404023 - 2² = 20323404019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20323404023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323404053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574553 + ... + 608898.

It is an arithmetic number, because the mean of its divisors is an integer number (2737916202).

Almost surely, 2^20323404023 is an apocalyptic number.

20323404023 is a deficient number, since it is larger than the sum of its proper divisors (1579925593).

20323404023 is a wasteful number, since it uses less digits than its factorization.

20323404023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184785.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20323404023 its reverse (32040432302), we get a palindrome (52363836325).

The spelling of 20323404023 in words is "twenty billion, three hundred twenty-three million, four hundred four thousand, twenty-three".