13121324434 has 8 divisors (see below), whose sum is σ = 19683544320. Its totient is φ = 6560142996.

The previous prime is 13121324431. The next prime is 13121324471. The reversal of 13121324434 is 43442312131.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (13121324431) 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, 227214 + ... + 279049.

It is an arithmetic number, because the mean of its divisors is an integer number (2460443040).

Almost surely, 2^13121324434 is an apocalyptic number.

13121324434 is a deficient number, since it is larger than the sum of its proper divisors (6562219886).

13121324434 is a wasteful number, since it uses less digits than its factorization.

13121324434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519224.

The product of its digits is 6912, while the sum is 28.

Adding to 13121324434 its reverse (43442312131), we get a palindrome (56563636565).

The spelling of 13121324434 in words is "thirteen billion, one hundred twenty-one million, three hundred twenty-four thousand, four hundred thirty-four".