20310013189 has 2 divisors, whose sum is σ = 20310013190. Its totient is φ = 20310013188.

The previous prime is 20310013109. The next prime is 20310013193. The reversal of 20310013189 is 98131001302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19626609025 + 683404164 = 140095^2 + 26142^2 .

It is a cyclic number.

It is not a de Polignac number, because 20310013189 - 2¹³ = 20310004997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20310013109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155006594 + 10155006595.

It is an arithmetic number, because the mean of its divisors is an integer number (10155006595).

Almost surely, 2^20310013189 is an apocalyptic number.

It is an amenable number.

20310013189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20310013189 is an equidigital number, since it uses as much as digits as its factorization.

20310013189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 20310013189 in words is "twenty billion, three hundred ten million, thirteen thousand, one hundred eighty-nine".