1323213201 has 6 divisors (see below), whose sum is σ = 1911307970. Its totient is φ = 882142128.

The previous prime is 1323213187. The next prime is 1323213209. The reversal of 1323213201 is 1023123231.

1323213201 is a `hidden beast` number, since 1 + 323 + 21 + 320 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 870545025 + 452668176 = 29505^2 + 21276^2 .

It is not a de Polignac number, because 1323213201 - 2⁵ = 1323213169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323213209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73511836 + ... + 73511853.

Almost surely, 2^1323213201 is an apocalyptic number.

It is an amenable number.

1323213201 is a deficient number, since it is larger than the sum of its proper divisors (588094769).

1323213201 is a wasteful number, since it uses less digits than its factorization.

1323213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147023695 (or 147023692 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1323213201 is about 36375.9975945678. The cubic root of 1323213201 is about 1097.8506794266.

Adding to 1323213201 its reverse (1023123231), we get a palindrome (2346336432).

The spelling of 1323213201 in words is "one billion, three hundred twenty-three million, two hundred thirteen thousand, two hundred one".