20423313043233 has 4 divisors (see below), whose sum is σ = 27231084057648. Its totient is φ = 13615542028820.

The previous prime is 20423313043229. The next prime is 20423313043249. The reversal of 20423313043233 is 33234031332402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20423313043233 - 2² = 20423313043229 is a prime.

It is a super-2 number, since 2×20423313043233² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20423313043194 and 20423313043203.

It is not an unprimeable number, because it can be changed into a prime (20423313063233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3403885507203 + ... + 3403885507208.

It is an arithmetic number, because the mean of its divisors is an integer number (6807771014412).

Almost surely, 2^{20423313043233} is an apocalyptic number.

It is an amenable number.

20423313043233 is a deficient number, since it is larger than the sum of its proper divisors (6807771014415).

20423313043233 is an equidigital number, since it uses as much as digits as its factorization.

20423313043233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6807771014414.

The product of its (nonzero) digits is 93312, while the sum is 33.

Adding to 20423313043233 its reverse (33234031332402), we get a palindrome (53657344375635).

The spelling of 20423313043233 in words is "twenty trillion, four hundred twenty-three billion, three hundred thirteen million, forty-three thousand, two hundred thirty-three".