20233013321231 has 24 divisors (see below), whose sum is σ = 21131795246400. Its totient is φ = 19366745025600.

The previous prime is 20233013321189. The next prime is 20233013321233. The reversal of 20233013321231 is 13212331033202.

It is not a de Polignac number, because 20233013321231 - 2²² = 20233009126927 is a prime.

It is a super-2 number, since 2×20233013321231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20233013321231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233013321233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30234845 + ... + 30896793.

It is an arithmetic number, because the mean of its divisors is an integer number (880491468600).

Almost surely, 2^{20233013321231} is an apocalyptic number.

20233013321231 is a deficient number, since it is larger than the sum of its proper divisors (898781925169).

20233013321231 is an equidigital number, since it uses as much as digits as its factorization.

20233013321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662367 (or 662324 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 20233013321231 its reverse (13212331033202), we get a palindrome (33445344354433).

The spelling of 20233013321231 in words is "twenty trillion, two hundred thirty-three billion, thirteen million, three hundred twenty-one thousand, two hundred thirty-one".