5321545444123 has 2 divisors, whose sum is σ = 5321545444124. Its totient is φ = 5321545444122.

The previous prime is 5321545444121. The next prime is 5321545444157. The reversal of 5321545444123 is 3214445451235.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5321545444123 - 2¹ = 5321545444121 is a prime.

Together with 5321545444121, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 5321545444123.

It is not a weakly prime, because it can be changed into another prime (5321545444121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2660772722061 + 2660772722062.

It is an arithmetic number, because the mean of its divisors is an integer number (2660772722062).

Almost surely, 2^{5321545444123} is an apocalyptic number.

5321545444123 is a deficient number, since it is larger than the sum of its proper divisors (1).

5321545444123 is an equidigital number, since it uses as much as digits as its factorization.

5321545444123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152000, while the sum is 43.

The spelling of 5321545444123 in words is "five trillion, three hundred twenty-one billion, five hundred forty-five million, four hundred forty-four thousand, one hundred twenty-three".