75043217123 has 12 divisors (see below), whose sum is σ = 87301175832. Its totient is φ = 64318332960.

The previous prime is 75043217101. The next prime is 75043217131. The reversal of 75043217123 is 32171234057.

It is a happy number.

It is not a de Polignac number, because 75043217123 - 2¹⁰ = 75043216099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75043217143) 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, 809468 + ... + 897398.

It is an arithmetic number, because the mean of its divisors is an integer number (7275097986).

Almost surely, 2^75043217123 is an apocalyptic number.

75043217123 is a deficient number, since it is larger than the sum of its proper divisors (12257958709).

75043217123 is a wasteful number, since it uses less digits than its factorization.

75043217123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105362 (or 105355 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The spelling of 75043217123 in words is "seventy-five billion, forty-three million, two hundred seventeen thousand, one hundred twenty-three".