1321311301 has 8 divisors (see below), whose sum is σ = 1343744600. Its totient is φ = 1298903040.

The previous prime is 1321311293. The next prime is 1321311307. The reversal of 1321311301 is 1031131231.

It can be written as a sum of positive squares in 4 ways, for example, as 1442401 + 1319868900 = 1201^2 + 36330^2 .

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 1321311301 - 2³ = 1321311293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321311307) 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, 122245 + ... + 132613.

It is an arithmetic number, because the mean of its divisors is an integer number (167968075).

Almost surely, 2^1321311301 is an apocalyptic number.

It is an amenable number.

1321311301 is a deficient number, since it is larger than the sum of its proper divisors (22433299).

1321311301 is a wasteful number, since it uses less digits than its factorization.

1321311301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12519.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1321311301 is about 36349.8459556571. The cubic root of 1321311301 is about 1097.3244343259.

Adding to 1321311301 its reverse (1031131231), we get a palindrome (2352442532).

The spelling of 1321311301 in words is "one billion, three hundred twenty-one million, three hundred eleven thousand, three hundred one".