13440415123 has 8 divisors (see below), whose sum is σ = 13942514880. Its totient is φ = 12946614720.

The previous prime is 13440415049. The next prime is 13440415129. The reversal of 13440415123 is 32151404431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13440415123 - 2²⁹ = 12903544211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13440415091 and 13440415100.

It is not an unprimeable number, because it can be changed into a prime (13440415129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2071540 + ... + 2078017.

It is an arithmetic number, because the mean of its divisors is an integer number (1742814360).

Almost surely, 2^13440415123 is an apocalyptic number.

13440415123 is a deficient number, since it is larger than the sum of its proper divisors (502099757).

13440415123 is an equidigital number, since it uses as much as digits as its factorization.

13440415123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4149677.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 13440415123 its reverse (32151404431), we get a palindrome (45591819554).

The spelling of 13440415123 in words is "thirteen billion, four hundred forty million, four hundred fifteen thousand, one hundred twenty-three".