13121322 has 16 divisors (see below), whose sum is σ = 26433120. Its totient is φ = 4342032.

The previous prime is 13121309. The next prime is 13121327. The reversal of 13121322 is 22312131.

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

It is not an unprimeable number, because it can be changed into a prime (13121327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7033 + ... + 8700.

It is an arithmetic number, because the mean of its divisors is an integer number (1652070).

Almost surely, 2^13121322 is an apocalyptic number.

13121322 is an abundant number, since it is smaller than the sum of its proper divisors (13311798).

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

13121322 is a wasteful number, since it uses less digits than its factorization.

13121322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15877.

The product of its digits is 72, while the sum is 15.

The square root of 13121322 is about 3622.3365387551. The cubic root of 13121322 is about 235.8626630799.

Adding to 13121322 its reverse (22312131), we get a palindrome (35433453).

The spelling of 13121322 in words is "thirteen million, one hundred twenty-one thousand, three hundred twenty-two".