1210200021343 has 2 divisors, whose sum is σ = 1210200021344. Its totient is φ = 1210200021342.

The previous prime is 1210200021341. The next prime is 1210200021347. The reversal of 1210200021343 is 3431200020121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1210200021343 - 2¹ = 1210200021341 is a prime.

Together with 1210200021341, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1210200021343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210200021341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605100010671 + 605100010672.

It is an arithmetic number, because the mean of its divisors is an integer number (605100010672).

Almost surely, 2^{1210200021343} is an apocalyptic number.

1210200021343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210200021343 is an equidigital number, since it uses as much as digits as its factorization.

1210200021343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1210200021343 its reverse (3431200020121), we get a palindrome (4641400041464).

The spelling of 1210200021343 in words is "one trillion, two hundred ten billion, two hundred million, twenty-one thousand, three hundred forty-three".