13243421432 has 16 divisors (see below), whose sum is σ = 25110421200. Its totient is φ = 6547309120.

The previous prime is 13243421423. The next prime is 13243421449. The reversal of 13243421432 is 23412434231.

It is a super-2 number, since 2×13243421432² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13243421395 and 13243421404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9299444 + ... + 9300867.

It is an arithmetic number, because the mean of its divisors is an integer number (1569401325).

Almost surely, 2^13243421432 is an apocalyptic number.

It is an amenable number.

13243421432 is a deficient number, since it is larger than the sum of its proper divisors (11866999768).

13243421432 is a wasteful number, since it uses less digits than its factorization.

13243421432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18600406 (or 18600402 counting only the distinct ones).

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

Adding to 13243421432 its reverse (23412434231), we get a palindrome (36655855663).

The spelling of 13243421432 in words is "thirteen billion, two hundred forty-three million, four hundred twenty-one thousand, four hundred thirty-two".