1207543755243 has 24 divisors (see below), whose sum is σ = 1873833343488. Its totient is φ = 689690353296.

The previous prime is 1207543755227. The next prime is 1207543755263. The reversal of 1207543755243 is 3425573457021.

It is not a de Polignac number, because 1207543755243 - 2⁴ = 1207543755227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1207543755192 and 1207543755201.

It is not an unprimeable number, because it can be changed into a prime (1207543755203) 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 23 ways as a sum of consecutive naturals, for example, 1687671 + ... + 2294192.

It is an arithmetic number, because the mean of its divisors is an integer number (78076389312).

Almost surely, 2^{1207543755243} is an apocalyptic number.

1207543755243 is a deficient number, since it is larger than the sum of its proper divisors (666289588245).

1207543755243 is a wasteful number, since it uses less digits than its factorization.

1207543755243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983943 (or 3983936 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 48.

The spelling of 1207543755243 in words is "one trillion, two hundred seven billion, five hundred forty-three million, seven hundred fifty-five thousand, two hundred forty-three".