1331223011113 has 4 divisors (see below), whose sum is σ = 1331246530900. Its totient is φ = 1331199491328.

The previous prime is 1331223011093. The next prime is 1331223011117. The reversal of 1331223011113 is 3111103221331.

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 952835633689 + 378387377424 = 976133^2 + 615132^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331223011113 - 2¹⁷ = 1331222880041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331223011117) 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, 11674788 + ... + 11788261.

It is an arithmetic number, because the mean of its divisors is an integer number (332811632725).

Almost surely, 2^{1331223011113} is an apocalyptic number.

It is an amenable number.

1331223011113 is a deficient number, since it is larger than the sum of its proper divisors (23519787).

1331223011113 is an equidigital number, since it uses as much as digits as its factorization.

1331223011113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23519786.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1331223011113 its reverse (3111103221331), we get a palindrome (4442326232444).

The spelling of 1331223011113 in words is "one trillion, three hundred thirty-one billion, two hundred twenty-three million, eleven thousand, one hundred thirteen".