13405103123 has 2 divisors, whose sum is σ = 13405103124. Its totient is φ = 13405103122.

The previous prime is 13405103119. The next prime is 13405103141. The reversal of 13405103123 is 32130150431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13405103123 - 2² = 13405103119 is a prime.

It is not a weakly prime, because it can be changed into another prime (13405103113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6702551561 + 6702551562.

It is an arithmetic number, because the mean of its divisors is an integer number (6702551562).

Almost surely, 2^13405103123 is an apocalyptic number.

13405103123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13405103123 is an equidigital number, since it uses as much as digits as its factorization.

13405103123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 13405103123 its reverse (32130150431), we get a palindrome (45535253554).

The spelling of 13405103123 in words is "thirteen billion, four hundred five million, one hundred three thousand, one hundred twenty-three".