1343212121253 has 16 divisors (see below), whose sum is σ = 1870472257920. Its totient is φ = 855782340864.

The previous prime is 1343212121171. The next prime is 1343212121261. The reversal of 1343212121253 is 3521212123431.

It is not a de Polignac number, because 1343212121253 - 2⁸ = 1343212120997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1343212121253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343212121653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8543376 + ... + 8699177.

It is an arithmetic number, because the mean of its divisors is an integer number (116904516120).

Almost surely, 2^{1343212121253} is an apocalyptic number.

It is an amenable number.

1343212121253 is a deficient number, since it is larger than the sum of its proper divisors (527260136667).

1343212121253 is a wasteful number, since it uses less digits than its factorization.

1343212121253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17243708.

The product of its digits is 8640, while the sum is 30.

Adding to 1343212121253 its reverse (3521212123431), we get a palindrome (4864424244684).

The spelling of 1343212121253 in words is "one trillion, three hundred forty-three billion, two hundred twelve million, one hundred twenty-one thousand, two hundred fifty-three".