1321402142213 has 2 divisors, whose sum is σ = 1321402142214. Its totient is φ = 1321402142212.

The previous prime is 1321402142189. The next prime is 1321402142231. The reversal of 1321402142213 is 3122412041231.

It is a happy number.

Together with next prime (1321402142231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1121466174049 + 199935968164 = 1058993^2 + 447142^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321402142213 - 2⁶ = 1321402142149 is a prime.

It is a super-2 number, since 2×1321402142213² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321402142273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660701071106 + 660701071107.

It is an arithmetic number, because the mean of its divisors is an integer number (660701071107).

Almost surely, 2^{1321402142213} is an apocalyptic number.

It is an amenable number.

1321402142213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321402142213 is an equidigital number, since it uses as much as digits as its factorization.

1321402142213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1321402142213 its reverse (3122412041231), we get a palindrome (4443814183444).

The spelling of 1321402142213 in words is "one trillion, three hundred twenty-one billion, four hundred two million, one hundred forty-two thousand, two hundred thirteen".