5431823121913 has 2 divisors, whose sum is σ = 5431823121914. Its totient is φ = 5431823121912.

The previous prime is 5431823121899. The next prime is 5431823122007. The reversal of 5431823121913 is 3191213281345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5333827202064 + 97995919849 = 2309508^2 + 313043^2 .

It is a cyclic number.

It is not a de Polignac number, because 5431823121913 - 2¹³ = 5431823113721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5431823121913.

It is not a weakly prime, because it can be changed into another prime (5431823121313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2715911560956 + 2715911560957.

It is an arithmetic number, because the mean of its divisors is an integer number (2715911560957).

Almost surely, 2^{5431823121913} is an apocalyptic number.

It is an amenable number.

5431823121913 is a deficient number, since it is larger than the sum of its proper divisors (1).

5431823121913 is an equidigital number, since it uses as much as digits as its factorization.

5431823121913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 43.

The spelling of 5431823121913 in words is "five trillion, four hundred thirty-one billion, eight hundred twenty-three million, one hundred twenty-one thousand, nine hundred thirteen".