42003333623 has 4 divisors (see below), whose sum is σ = 42077153760. Its totient is φ = 41929513488.

The previous prime is 42003333613. The next prime is 42003333643. The reversal of 42003333623 is 32633330024.

42003333623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42003333623 - 2⁸ = 42003333367 is a prime.

It is a super-2 number, since 2×42003333623² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42003333613) 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, 36909215 + ... + 36910352.

It is an arithmetic number, because the mean of its divisors is an integer number (10519288440).

Almost surely, 2^42003333623 is an apocalyptic number.

42003333623 is a deficient number, since it is larger than the sum of its proper divisors (73820137).

42003333623 is an equidigital number, since it uses as much as digits as its factorization.

42003333623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73820136.

The product of its (nonzero) digits is 23328, while the sum is 29.

Adding to 42003333623 its reverse (32633330024), we get a palindrome (74636663647).

The spelling of 42003333623 in words is "forty-two billion, three million, three hundred thirty-three thousand, six hundred twenty-three".