20203233021231 has 32 divisors (see below), whose sum is σ = 30552079971840. Its totient is φ = 11772432411264.

The previous prime is 20203233021133. The next prime is 20203233021289. The reversal of 20203233021231 is 13212033230202.

It is not a de Polignac number, because 20203233021231 - 2²⁹ = 20202696150319 is a prime.

It is a super-2 number, since 2×20203233021231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203233021431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5447491 + ... + 8371476.

It is an arithmetic number, because the mean of its divisors is an integer number (954752499120).

Almost surely, 2^{20203233021231} is an apocalyptic number.

20203233021231 is a deficient number, since it is larger than the sum of its proper divisors (10348846950609).

20203233021231 is a wasteful number, since it uses less digits than its factorization.

20203233021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13820975.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 20203233021231 its reverse (13212033230202), we get a palindrome (33415266251433).

The spelling of 20203233021231 in words is "twenty trillion, two hundred three billion, two hundred thirty-three million, twenty-one thousand, two hundred thirty-one".