75124421303 has 4 divisors (see below), whose sum is σ = 75628612200. Its totient is φ = 74620230408.

The previous prime is 75124421293. The next prime is 75124421341. The reversal of 75124421303 is 30312442157.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75124421303 - 2⁴ = 75124421287 is a prime.

It is a super-2 number, since 2×75124421303² (a number of 23 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 75124421303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75124421363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252095225 + ... + 252095522.

It is an arithmetic number, because the mean of its divisors is an integer number (18907153050).

Almost surely, 2^75124421303 is an apocalyptic number.

75124421303 is a deficient number, since it is larger than the sum of its proper divisors (504190897).

75124421303 is a wasteful number, since it uses less digits than its factorization.

75124421303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504190896.

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 75124421303 in words is "seventy-five billion, one hundred twenty-four million, four hundred twenty-one thousand, three hundred three".