20002423023 has 24 divisors (see below), whose sum is σ = 33373029456. Its totient is φ = 11409580800.

The previous prime is 20002423003. The next prime is 20002423037. The reversal of 20002423023 is 32032420002.

It is a de Polignac number, because none of the positive numbers 2^k-20002423023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20002422987 and 20002423005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002423003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5940808 + ... + 5944173.

It is an arithmetic number, because the mean of its divisors is an integer number (1390542894).

Almost surely, 2^20002423023 is an apocalyptic number.

20002423023 is a deficient number, since it is larger than the sum of its proper divisors (13370606433).

20002423023 is a wasteful number, since it uses less digits than its factorization.

20002423023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11885015 (or 11885012 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 20002423023 its reverse (32032420002), we get a palindrome (52034843025).

The spelling of 20002423023 in words is "twenty billion, two million, four hundred twenty-three thousand, twenty-three".