1243105446073 has 16 divisors (see below), whose sum is σ = 1361796192000. Its totient is φ = 1129488337152.

The previous prime is 1243105446059. The next prime is 1243105446119. The reversal of 1243105446073 is 3706445013421.

It is a cyclic number.

It is not a de Polignac number, because 1243105446073 - 2⁵ = 1243105446041 is a prime.

It is a super-2 number, since 2×1243105446073² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243105446673) 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, 3662698 + ... + 3987676.

It is an arithmetic number, because the mean of its divisors is an integer number (85112262000).

Almost surely, 2^{1243105446073} is an apocalyptic number.

It is an amenable number.

1243105446073 is a deficient number, since it is larger than the sum of its proper divisors (118690745927).

1243105446073 is a wasteful number, since it uses less digits than its factorization.

1243105446073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332784.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 1243105446073 in words is "one trillion, two hundred forty-three billion, one hundred five million, four hundred forty-six thousand, seventy-three".