1331230012213 has 2 divisors, whose sum is σ = 1331230012214. Its totient is φ = 1331230012212.

The previous prime is 1331230012187. The next prime is 1331230012241. The reversal of 1331230012213 is 3122100321331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1294481889009 + 36748123204 = 1137753^2 + 191698^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331230012213 - 2⁹ = 1331230011701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331230012613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665615006106 + 665615006107.

It is an arithmetic number, because the mean of its divisors is an integer number (665615006107).

Almost surely, 2^{1331230012213} is an apocalyptic number.

It is an amenable number.

1331230012213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331230012213 is an equidigital number, since it uses as much as digits as its factorization.

1331230012213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1331230012213 its reverse (3122100321331), we get a palindrome (4453330333544).

The spelling of 1331230012213 in words is "one trillion, three hundred thirty-one billion, two hundred thirty million, twelve thousand, two hundred thirteen".