123342103513 has 2 divisors, whose sum is σ = 123342103514. Its totient is φ = 123342103512.

The previous prime is 123342103457. The next prime is 123342103529. The reversal of 123342103513 is 315301243321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83568980889 + 39773122624 = 289083^2 + 199432^2 .

It is an emirp because it is prime and its reverse (315301243321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123342103513 - 2¹⁷ = 123341972441 is a prime.

It is not a weakly prime, because it can be changed into another prime (123342113513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61671051756 + 61671051757.

It is an arithmetic number, because the mean of its divisors is an integer number (61671051757).

Almost surely, 2^123342103513 is an apocalyptic number.

It is an amenable number.

123342103513 is a deficient number, since it is larger than the sum of its proper divisors (1).

123342103513 is an equidigital number, since it uses as much as digits as its factorization.

123342103513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 123342103513 its reverse (315301243321), we get a palindrome (438643346834).

The spelling of 123342103513 in words is "one hundred twenty-three billion, three hundred forty-two million, one hundred three thousand, five hundred thirteen".