1322421013 has 4 divisors (see below), whose sum is σ = 1344100108. Its totient is φ = 1300741920.

The previous prime is 1322420921. The next prime is 1322421019. The reversal of 1322421013 is 3101242231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94128804 + 1228292209 = 9702^2 + 35047^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322421013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322421019) 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, 10839456 + ... + 10839577.

It is an arithmetic number, because the mean of its divisors is an integer number (336025027).

Almost surely, 2^1322421013 is an apocalyptic number.

It is an amenable number.

1322421013 is a deficient number, since it is larger than the sum of its proper divisors (21679095).

1322421013 is an equidigital number, since it uses as much as digits as its factorization.

1322421013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21679094.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1322421013 is about 36365.1070808268. The cubic root of 1322421013 is about 1097.6315467500.

Adding to 1322421013 its reverse (3101242231), we get a palindrome (4423663244).

The spelling of 1322421013 in words is "one billion, three hundred twenty-two million, four hundred twenty-one thousand, thirteen".