1353221051043 has 16 divisors (see below), whose sum is σ = 1847592217856. Its totient is φ = 880529015520.

The previous prime is 1353221050949. The next prime is 1353221051057. The reversal of 1353221051043 is 3401501223531.

It is not a de Polignac number, because 1353221051043 - 2¹⁰ = 1353221050019 is a prime.

It is a super-2 number, since 2×1353221051043² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1353221051043.

It is not an unprimeable number, because it can be changed into a prime (1353221051543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3619855 + ... + 3976152.

It is an arithmetic number, because the mean of its divisors is an integer number (115474513616).

Almost surely, 2^{1353221051043} is an apocalyptic number.

1353221051043 is a deficient number, since it is larger than the sum of its proper divisors (494371166813).

1353221051043 is a wasteful number, since it uses less digits than its factorization.

1353221051043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7597434.

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

Adding to 1353221051043 its reverse (3401501223531), we get a palindrome (4754722274574).

The spelling of 1353221051043 in words is "one trillion, three hundred fifty-three billion, two hundred twenty-one million, fifty-one thousand, forty-three".