1053221105343 has 16 divisors (see below), whose sum is σ = 1535703609600. Its totient is φ = 636755138880.

The previous prime is 1053221105243. The next prime is 1053221105393. The reversal of 1053221105343 is 3435011223501.

It is not a de Polignac number, because 1053221105343 - 2²² = 1053216911039 is a prime.

It is a super-2 number, since 2×1053221105343² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1053221105343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053221105393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39003363 + ... + 39030356.

It is an arithmetic number, because the mean of its divisors is an integer number (95981475600).

Almost surely, 2^{1053221105343} is an apocalyptic number.

1053221105343 is a deficient number, since it is larger than the sum of its proper divisors (482482504257).

1053221105343 is a wasteful number, since it uses less digits than its factorization.

1053221105343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78034142.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 1053221105343 its reverse (3435011223501), we get a palindrome (4488232328844).

The spelling of 1053221105343 in words is "one trillion, fifty-three billion, two hundred twenty-one million, one hundred five thousand, three hundred forty-three".