1331002201321 has 16 divisors (see below), whose sum is σ = 1496386612224. Its totient is φ = 1174666198464.

The previous prime is 1331002201289. The next prime is 1331002201343. The reversal of 1331002201321 is 1231022001331.

It is a cyclic number.

It is not a de Polignac number, because 1331002201321 - 2⁵ = 1331002201289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1331002201121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348606 + ... + 1668391.

It is an arithmetic number, because the mean of its divisors is an integer number (93524163264).

Almost surely, 2^{1331002201321} is an apocalyptic number.

It is an amenable number.

1331002201321 is a deficient number, since it is larger than the sum of its proper divisors (165384410903).

1331002201321 is a wasteful number, since it uses less digits than its factorization.

1331002201321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019240.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1331002201321 its reverse (1231022001331), we get a palindrome (2562024202652).

The spelling of 1331002201321 in words is "one trillion, three hundred thirty-one billion, two million, two hundred one thousand, three hundred twenty-one".