13121444311 has 2 divisors, whose sum is σ = 13121444312. Its totient is φ = 13121444310.

The previous prime is 13121444291. The next prime is 13121444333. The reversal of 13121444311 is 11344412131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13121444311 - 2⁹ = 13121443799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13121444111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560722155 + 6560722156.

It is an arithmetic number, because the mean of its divisors is an integer number (6560722156).

Almost surely, 2^13121444311 is an apocalyptic number.

13121444311 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121444311 is an equidigital number, since it uses as much as digits as its factorization.

13121444311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

Adding to 13121444311 its reverse (11344412131), we get a palindrome (24465856442).

The spelling of 13121444311 in words is "thirteen billion, one hundred twenty-one million, four hundred forty-four thousand, three hundred eleven".