1310332321421 has 2 divisors, whose sum is σ = 1310332321422. Its totient is φ = 1310332321420.

The previous prime is 1310332321411. The next prime is 1310332321481. The reversal of 1310332321421 is 1241232330131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1154741518921 + 155590802500 = 1074589^2 + 394450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1310332321421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310332321411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655166160710 + 655166160711.

It is an arithmetic number, because the mean of its divisors is an integer number (655166160711).

Almost surely, 2^{1310332321421} is an apocalyptic number.

It is an amenable number.

1310332321421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310332321421 is an equidigital number, since it uses as much as digits as its factorization.

1310332321421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 1310332321421 its reverse (1241232330131), we get a palindrome (2551564651552).

The spelling of 1310332321421 in words is "one trillion, three hundred ten billion, three hundred thirty-two million, three hundred twenty-one thousand, four hundred twenty-one".