1330311211021 has 8 divisors (see below), whose sum is σ = 1432795172760. Its totient is φ = 1227849010752.

The previous prime is 1330311210947. The next prime is 1330311211043. The reversal of 1330311211021 is 1201121130331.

It can be written as a sum of positive squares in 4 ways, for example, as 756527685796 + 573783525225 = 869786^2 + 757485^2 .

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

It is not a de Polignac number, because 1330311211021 - 2⁹ = 1330311210509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1330311211021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330311211081) 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, 5313286 + ... + 5558023.

It is an arithmetic number, because the mean of its divisors is an integer number (179099396595).

Almost surely, 2^{1330311211021} is an apocalyptic number.

It is an amenable number.

1330311211021 is a deficient number, since it is larger than the sum of its proper divisors (102483961739).

1330311211021 is a wasteful number, since it uses less digits than its factorization.

1330311211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10880735.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1330311211021 its reverse (1201121130331), we get a palindrome (2531432341352).

The spelling of 1330311211021 in words is "one trillion, three hundred thirty billion, three hundred eleven million, two hundred eleven thousand, twenty-one".