1321434211053 has 12 divisors (see below), whose sum is σ = 1936647384224. Its totient is φ = 800869218600.

The previous prime is 1321434211049. The next prime is 1321434211067. The reversal of 1321434211053 is 3501124341231.

It is not a de Polignac number, because 1321434211053 - 2² = 1321434211049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321434211053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321434211033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1820156953 + ... + 1820157678.

Almost surely, 2^{1321434211053} is an apocalyptic number.

It is an amenable number.

1321434211053 is a deficient number, since it is larger than the sum of its proper divisors (615213173171).

1321434211053 is a wasteful number, since it uses less digits than its factorization.

1321434211053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3640314656 (or 3640314645 counting only the distinct ones).

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

Adding to 1321434211053 its reverse (3501124341231), we get a palindrome (4822558552284).

The spelling of 1321434211053 in words is "one trillion, three hundred twenty-one billion, four hundred thirty-four million, two hundred eleven thousand, fifty-three".