13231020311 has 2 divisors, whose sum is σ = 13231020312. Its totient is φ = 13231020310.

The previous prime is 13231020277. The next prime is 13231020331. The reversal of 13231020311 is 11302013231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13231020311 - 2³⁰ = 12157278487 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13231020311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13231020331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615510155 + 6615510156.

It is an arithmetic number, because the mean of its divisors is an integer number (6615510156).

Almost surely, 2^13231020311 is an apocalyptic number.

13231020311 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231020311 is an equidigital number, since it uses as much as digits as its factorization.

13231020311 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 17.

Adding to 13231020311 its reverse (11302013231), we get a palindrome (24533033542).

The spelling of 13231020311 in words is "thirteen billion, two hundred thirty-one million, twenty thousand, three hundred eleven".