20301310031 has 2 divisors, whose sum is σ = 20301310032. Its totient is φ = 20301310030.

The previous prime is 20301310013. The next prime is 20301310037. The reversal of 20301310031 is 13001310302.

Together with previous prime (20301310013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20301310031 is a prime.

It is a super-2 number, since 2×20301310031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20301309988 and 20301310015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20301310037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150655015 + 10150655016.

It is an arithmetic number, because the mean of its divisors is an integer number (10150655016).

Almost surely, 2^20301310031 is an apocalyptic number.

20301310031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20301310031 is an equidigital number, since it uses as much as digits as its factorization.

20301310031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 20301310031 its reverse (13001310302), we get a palindrome (33302620333).

The spelling of 20301310031 in words is "twenty billion, three hundred one million, three hundred ten thousand, thirty-one".