20330020031 has 2 divisors, whose sum is σ = 20330020032. Its totient is φ = 20330020030.

The previous prime is 20330020021. The next prime is 20330020063. The reversal of 20330020031 is 13002003302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20330020031 - 2⁶ = 20330019967 is a prime.

It is a super-2 number, since 2×20330020031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20330019988 and 20330020015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20330020021) 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, 10165010015 + 10165010016.

It is an arithmetic number, because the mean of its divisors is an integer number (10165010016).

Almost surely, 2^20330020031 is an apocalyptic number.

20330020031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330020031 is an equidigital number, since it uses as much as digits as its factorization.

20330020031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20330020031 its reverse (13002003302), we get a palindrome (33332023333).

The spelling of 20330020031 in words is "twenty billion, three hundred thirty million, twenty thousand, thirty-one".