1322331321 has 8 divisors (see below), whose sum is σ = 1763289504. Its totient is φ = 881463680.

The previous prime is 1322331317. The next prime is 1322331331. The reversal of 1322331321 is 1231332231.

1322331321 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 1322331321 - 2² = 1322331317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1322331301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26986 + ... + 58076.

It is an arithmetic number, because the mean of its divisors is an integer number (220411188).

Almost surely, 2^1322331321 is an apocalyptic number.

It is an amenable number.

1322331321 is a deficient number, since it is larger than the sum of its proper divisors (440958183).

1322331321 is a wasteful number, since it uses less digits than its factorization.

1322331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45271.

The product of its digits is 648, while the sum is 21.

The square root of 1322331321 is about 36363.8738447927. The cubic root of 1322331321 is about 1097.6067309025.

Adding to 1322331321 its reverse (1231332231), we get a palindrome (2553663552).

It can be divided in two parts, 13223 and 31321, that added together give a palindrome (44544).

The spelling of 1322331321 in words is "one billion, three hundred twenty-two million, three hundred thirty-one thousand, three hundred twenty-one".