1321230202 has 8 divisors (see below), whose sum is σ = 2000027700. Its totient is φ = 654554304.

The previous prime is 1321230143. The next prime is 1321230221. The reversal of 1321230202 is 2020321231.

It can be written as a sum of positive squares in 2 ways, for example, as 1320522921 + 707281 = 36339^2 + 841^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3030127 + ... + 3030562.

Almost surely, 2^1321230202 is an apocalyptic number.

1321230202 is a deficient number, since it is larger than the sum of its proper divisors (678797498).

1321230202 is a wasteful number, since it uses less digits than its factorization.

1321230202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060800.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1321230202 is about 36348.7304042383. The cubic root of 1321230202 is about 1097.3019834634.

Adding to 1321230202 its reverse (2020321231), we get a palindrome (3341551433).

The spelling of 1321230202 in words is "one billion, three hundred twenty-one million, two hundred thirty thousand, two hundred two".