42003043193 has 4 divisors (see below), whose sum is σ = 42050720628. Its totient is φ = 41955365760.

The previous prime is 42003043157. The next prime is 42003043241. The reversal of 42003043193 is 39134030024.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11714165824 + 30288877369 = 108232^2 + 174037^2 .

It is a cyclic number.

It is not a de Polignac number, because 42003043193 - 2²⁴ = 41986265977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42003043123) 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, 23837396 + ... + 23839157.

It is an arithmetic number, because the mean of its divisors is an integer number (10512680157).

Almost surely, 2^42003043193 is an apocalyptic number.

It is an amenable number.

42003043193 is a deficient number, since it is larger than the sum of its proper divisors (47677435).

42003043193 is an equidigital number, since it uses as much as digits as its factorization.

42003043193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47677434.

The product of its (nonzero) digits is 7776, while the sum is 29.

The spelling of 42003043193 in words is "forty-two billion, three million, forty-three thousand, one hundred ninety-three".