20013001031 has 2 divisors, whose sum is σ = 20013001032. Its totient is φ = 20013001030.

The previous prime is 20013000991. The next prime is 20013001067. The reversal of 20013001031 is 13010031002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20013001031 - 2²⁶ = 19945892167 is a prime.

It is a super-2 number, since 2×20013001031² (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 (20013001231) 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, 10006500515 + 10006500516.

It is an arithmetic number, because the mean of its divisors is an integer number (10006500516).

Almost surely, 2^20013001031 is an apocalyptic number.

20013001031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013001031 is an equidigital number, since it uses as much as digits as its factorization.

20013001031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 20013001031 its reverse (13010031002), we get a palindrome (33023032033).

The spelling of 20013001031 in words is "twenty billion, thirteen million, one thousand, thirty-one".