13404120423 has 8 divisors (see below), whose sum is σ = 17884416000. Its totient is φ = 8929952568.

The previous prime is 13404120413. The next prime is 13404120451. The reversal of 13404120423 is 32402140431.

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

It is not a de Polignac number, because 13404120423 - 2¹⁷ = 13403989351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13404120393 and 13404120402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13404120413) 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, 1526823 + ... + 1535576.

It is an arithmetic number, because the mean of its divisors is an integer number (2235552000).

Almost surely, 2^13404120423 is an apocalyptic number.

13404120423 is a deficient number, since it is larger than the sum of its proper divisors (4480295577).

13404120423 is a wasteful number, since it uses less digits than its factorization.

13404120423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063861.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 13404120423 its reverse (32402140431), we get a palindrome (45806260854).

The spelling of 13404120423 in words is "thirteen billion, four hundred four million, one hundred twenty thousand, four hundred twenty-three".