20000233203231 has 16 divisors (see below), whose sum is σ = 27171684749664. Its totient is φ = 13081164056064.

The previous prime is 20000233203169. The next prime is 20000233203239. The reversal of 20000233203231 is 13230233200002.

It is not a de Polignac number, because 20000233203231 - 2¹⁰ = 20000233202207 is a prime.

It is a super-2 number, since 2×20000233203231² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20000233203198 and 20000233203207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000233203239) 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, 812526 + ... + 6376571.

It is an arithmetic number, because the mean of its divisors is an integer number (1698230296854).

Almost surely, 2^{20000233203231} is an apocalyptic number.

20000233203231 is a deficient number, since it is larger than the sum of its proper divisors (7171451546433).

20000233203231 is a wasteful number, since it uses less digits than its factorization.

20000233203231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7206650.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20000233203231 its reverse (13230233200002), we get a palindrome (33230466403233).

The spelling of 20000233203231 in words is "twenty trillion, two hundred thirty-three million, two hundred three thousand, two hundred thirty-one".