1331220010213 has 4 divisors (see below), whose sum is σ = 1331234423680. Its totient is φ = 1331205596748.

The previous prime is 1331220010181. The next prime is 1331220010231. The reversal of 1331220010213 is 3120100221331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1331220010213 - 2⁵ = 1331220010181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331220010243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7067295 + ... + 7253212.

It is an arithmetic number, because the mean of its divisors is an integer number (332808605920).

Almost surely, 2^{1331220010213} is an apocalyptic number.

It is an amenable number.

1331220010213 is a deficient number, since it is larger than the sum of its proper divisors (14413467).

1331220010213 is an equidigital number, since it uses as much as digits as its factorization.

1331220010213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14413466.

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

Adding to 1331220010213 its reverse (3120100221331), we get a palindrome (4451320231544).

The spelling of 1331220010213 in words is "one trillion, three hundred thirty-one billion, two hundred twenty million, ten thousand, two hundred thirteen".