1321214342213 has 2 divisors, whose sum is σ = 1321214342214. Its totient is φ = 1321214342212.

The previous prime is 1321214342101. The next prime is 1321214342249. The reversal of 1321214342213 is 3122434121231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1129473696289 + 191740645924 = 1062767^2 + 437882^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321214342213 - 2²⁶ = 1321147233349 is a prime.

It is a super-3 number, since 3×1321214342213³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321214242213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660607171106 + 660607171107.

It is an arithmetic number, because the mean of its divisors is an integer number (660607171107).

Almost surely, 2^{1321214342213} is an apocalyptic number.

It is an amenable number.

1321214342213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321214342213 is an equidigital number, since it uses as much as digits as its factorization.

1321214342213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

Adding to 1321214342213 its reverse (3122434121231), we get a palindrome (4443648463444).

The spelling of 1321214342213 in words is "one trillion, three hundred twenty-one billion, two hundred fourteen million, three hundred forty-two thousand, two hundred thirteen".