20023312031 has 2 divisors, whose sum is σ = 20023312032. Its totient is φ = 20023312030.

The previous prime is 20023312019. The next prime is 20023312039. The reversal of 20023312031 is 13021332002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20023312031 - 2¹⁴ = 20023295647 is a prime.

It is a super-2 number, since 2×20023312031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20023312039) 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, 10011656015 + 10011656016.

It is an arithmetic number, because the mean of its divisors is an integer number (10011656016).

Almost surely, 2^20023312031 is an apocalyptic number.

20023312031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023312031 is an equidigital number, since it uses as much as digits as its factorization.

20023312031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20023312031 its reverse (13021332002), we get a palindrome (33044644033).

The spelling of 20023312031 in words is "twenty billion, twenty-three million, three hundred twelve thousand, thirty-one".