20123302033231 has 2 divisors, whose sum is σ = 20123302033232. Its totient is φ = 20123302033230.

The previous prime is 20123302033229. The next prime is 20123302033259. The reversal of 20123302033231 is 13233020332102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20123302033231 - 2¹ = 20123302033229 is a prime.

It is a super-2 number, since 2×20123302033231² (a number of 27 digits) contains 22 as substring.

Together with 20123302033229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20123302033196 and 20123302033205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20123302039231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061651016615 + 10061651016616.

It is an arithmetic number, because the mean of its divisors is an integer number (10061651016616).

Almost surely, 2^{20123302033231} is an apocalyptic number.

20123302033231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123302033231 is an equidigital number, since it uses as much as digits as its factorization.

20123302033231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20123302033231 its reverse (13233020332102), we get a palindrome (33356322365333).

The spelling of 20123302033231 in words is "twenty trillion, one hundred twenty-three billion, three hundred two million, thirty-three thousand, two hundred thirty-one".