1321402214533 has 2 divisors, whose sum is σ = 1321402214534. Its totient is φ = 1321402214532.

The previous prime is 1321402214521. The next prime is 1321402214557. The reversal of 1321402214533 is 3354122041231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 824233384129 + 497168830404 = 907873^2 + 705102^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321402214533 is a prime.

It is a super-2 number, since 2×1321402214533² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1321402214495 and 1321402214504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321402214513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660701107266 + 660701107267.

It is an arithmetic number, because the mean of its divisors is an integer number (660701107267).

Almost surely, 2^{1321402214533} is an apocalyptic number.

It is an amenable number.

1321402214533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321402214533 is an equidigital number, since it uses as much as digits as its factorization.

1321402214533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 1321402214533 its reverse (3354122041231), we get a palindrome (4675524255764).

The spelling of 1321402214533 in words is "one trillion, three hundred twenty-one billion, four hundred two million, two hundred fourteen thousand, five hundred thirty-three".