13121334324 has 72 divisors (see below), whose sum is σ = 37920617280. Its totient is φ = 3747514752.

The previous prime is 13121334307. The next prime is 13121334353. The reversal of 13121334324 is 42343312131.

It is a happy number.

13121334324 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 1 + 334 + 324 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 768472 + ... + 785360.

It is an arithmetic number, because the mean of its divisors is an integer number (526675240).

Almost surely, 2^13121334324 is an apocalyptic number.

13121334324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13121334324 is an abundant number, since it is smaller than the sum of its proper divisors (24799282956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13121334324 is a wasteful number, since it uses less digits than its factorization.

13121334324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19989 (or 19984 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 13121334324 its reverse (42343312131), we get a palindrome (55464646455).

The spelling of 13121334324 in words is "thirteen billion, one hundred twenty-one million, three hundred thirty-four thousand, three hundred twenty-four".