20023222550231 has 16 divisors (see below), whose sum is σ = 20222613357408. Its totient is φ = 19824584208000.

The previous prime is 20023222550213. The next prime is 20023222550269. The reversal of 20023222550231 is 13205522232002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20023222550231 is a prime.

It is a super-2 number, since 2×20023222550231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20023222550194 and 20023222550203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023222550831) 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, 111201485 + ... + 111381401.

It is an arithmetic number, because the mean of its divisors is an integer number (1263913334838).

Almost surely, 2^{20023222550231} is an apocalyptic number.

20023222550231 is a deficient number, since it is larger than the sum of its proper divisors (199390807177).

20023222550231 is a wasteful number, since it uses less digits than its factorization.

20023222550231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182002.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 20023222550231 its reverse (13205522232002), we get a palindrome (33228744782233).

The spelling of 20023222550231 in words is "twenty trillion, twenty-three billion, two hundred twenty-two million, five hundred fifty thousand, two hundred thirty-one".