1323969201 has 6 divisors (see below), whose sum is σ = 1912399970. Its totient is φ = 882646128.

The previous prime is 1323969169. The next prime is 1323969209. The reversal of 1323969201 is 1029693231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 706496400 + 617472801 = 26580^2 + 24849^2 .

It is not a de Polignac number, because 1323969201 - 2⁵ = 1323969169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323969209) 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, 73553836 + ... + 73553853.

Almost surely, 2^1323969201 is an apocalyptic number.

It is an amenable number.

1323969201 is a deficient number, since it is larger than the sum of its proper divisors (588430769).

1323969201 is a wasteful number, since it uses less digits than its factorization.

1323969201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147107695 (or 147107692 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 1323969201 is about 36386.3875783238. The cubic root of 1323969201 is about 1098.0597203426.

The spelling of 1323969201 in words is "one billion, three hundred twenty-three million, nine hundred sixty-nine thousand, two hundred one".