123219586013 has 2 divisors, whose sum is σ = 123219586014. Its totient is φ = 123219586012.

The previous prime is 123219585977. The next prime is 123219586019. The reversal of 123219586013 is 310685912321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96051646084 + 27167939929 = 309922^2 + 164827^2 .

It is an emirp because it is prime and its reverse (310685912321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123219586013 - 2²² = 123215391709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123219586019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61609793006 + 61609793007.

It is an arithmetic number, because the mean of its divisors is an integer number (61609793007).

Almost surely, 2^123219586013 is an apocalyptic number.

It is an amenable number.

123219586013 is a deficient number, since it is larger than the sum of its proper divisors (1).

123219586013 is an equidigital number, since it uses as much as digits as its factorization.

123219586013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 123219586013 in words is "one hundred twenty-three billion, two hundred nineteen million, five hundred eighty-six thousand, thirteen".