13431404234 has 16 divisors (see below), whose sum is σ = 21828331008. Its totient is φ = 6173668032.

The previous prime is 13431404227. The next prime is 13431404237. The reversal of 13431404234 is 43240413431.

It is a happy number.

It is a super-2 number, since 2×13431404234² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13431404197 and 13431404206.

It is not an unprimeable number, because it can be changed into a prime (13431404237) 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, 4592042 + ... + 4594965.

It is an arithmetic number, because the mean of its divisors is an integer number (1364270688).

Almost surely, 2^13431404234 is an apocalyptic number.

13431404234 is a deficient number, since it is larger than the sum of its proper divisors (8396926774).

13431404234 is a wasteful number, since it uses less digits than its factorization.

13431404234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9187069.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 13431404234 its reverse (43240413431), we get a palindrome (56671817665).

The spelling of 13431404234 in words is "thirteen billion, four hundred thirty-one million, four hundred four thousand, two hundred thirty-four".