1330211321321 has 4 divisors (see below), whose sum is σ = 1366162978692. Its totient is φ = 1294259663952.

The previous prime is 1330211321279. The next prime is 1330211321357. The reversal of 1330211321321 is 1231231120331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1195390168921 + 134821152400 = 1093339^2 + 367180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1330211321321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330211321381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17975828630 + ... + 17975828703.

It is an arithmetic number, because the mean of its divisors is an integer number (341540744673).

Almost surely, 2^{1330211321321} is an apocalyptic number.

It is an amenable number.

1330211321321 is a deficient number, since it is larger than the sum of its proper divisors (35951657371).

1330211321321 is an equidigital number, since it uses as much as digits as its factorization.

1330211321321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35951657370.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1330211321321 its reverse (1231231120331), we get a palindrome (2561442441652).

The spelling of 1330211321321 in words is "one trillion, three hundred thirty billion, two hundred eleven million, three hundred twenty-one thousand, three hundred twenty-one".