42501500321 has 4 divisors (see below), whose sum is σ = 48573143232. Its totient is φ = 36429857412.

The previous prime is 42501500299. The next prime is 42501500323. The reversal of 42501500321 is 12300510524.

42501500321 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42501500321 - 2²⁶ = 42434391457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42501500323) 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, 3035821445 + ... + 3035821458.

It is an arithmetic number, because the mean of its divisors is an integer number (12143285808).

Almost surely, 2^42501500321 is an apocalyptic number.

It is an amenable number.

42501500321 is a deficient number, since it is larger than the sum of its proper divisors (6071642911).

42501500321 is an equidigital number, since it uses as much as digits as its factorization.

42501500321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6071642910.

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 42501500321 in words is "forty-two billion, five hundred one million, five hundred thousand, three hundred twenty-one".