13400111423 has 4 divisors (see below), whose sum is σ = 13652943768. Its totient is φ = 13147279080.

The previous prime is 13400111393. The next prime is 13400111449. The reversal of 13400111423 is 32411100431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13400111423 is a prime.

It is a super-2 number, since 2×13400111423² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13400111395 and 13400111404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400141423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126416093 + ... + 126416198.

It is an arithmetic number, because the mean of its divisors is an integer number (3413235942).

Almost surely, 2^13400111423 is an apocalyptic number.

13400111423 is a deficient number, since it is larger than the sum of its proper divisors (252832345).

13400111423 is an equidigital number, since it uses as much as digits as its factorization.

13400111423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252832344.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13400111423 its reverse (32411100431), we get a palindrome (45811211854).

The spelling of 13400111423 in words is "thirteen billion, four hundred million, one hundred eleven thousand, four hundred twenty-three".