20310013031 has 32 divisors (see below), whose sum is σ = 25817909760. Its totient is φ = 15517180800.

The previous prime is 20310013019. The next prime is 20310013049. The reversal of 20310013031 is 13031001302.

It is not a de Polignac number, because 20310013031 - 2¹⁸ = 20309750887 is a prime.

It is a super-2 number, since 2×20310013031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20310012997 and 20310013015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310013051) 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 in 31 ways as a sum of consecutive naturals, for example, 1797941 + ... + 1809201.

It is an arithmetic number, because the mean of its divisors is an integer number (806809680).

Almost surely, 2^20310013031 is an apocalyptic number.

20310013031 is a deficient number, since it is larger than the sum of its proper divisors (5507896729).

20310013031 is a wasteful number, since it uses less digits than its factorization.

20310013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11735.

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

Adding to 20310013031 its reverse (13031001302), we get a palindrome (33341014333).

The spelling of 20310013031 in words is "twenty billion, three hundred ten million, thirteen thousand, thirty-one".