13401324123 has 24 divisors (see below), whose sum is σ = 19554210240. Its totient is φ = 8096520960.

The previous prime is 13401324109. The next prime is 13401324127. The reversal of 13401324123 is 32142310431.

It is a happy number.

It is not a de Polignac number, because 13401324123 - 2⁶ = 13401324059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13401324093 and 13401324102.

It is not an unprimeable number, because it can be changed into a prime (13401324127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4110468 + ... + 4113726.

It is an arithmetic number, because the mean of its divisors is an integer number (814758760).

Almost surely, 2^13401324123 is an apocalyptic number.

13401324123 is a deficient number, since it is larger than the sum of its proper divisors (6152886117).

13401324123 is an equidigital number, since it uses as much as digits as its factorization.

13401324123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979 (or 3626 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13401324123 its reverse (32142310431), we get a palindrome (45543634554).

The spelling of 13401324123 in words is "thirteen billion, four hundred one million, three hundred twenty-four thousand, one hundred twenty-three".