42312506421 has 8 divisors (see below), whose sum is σ = 56417956704. Its totient is φ = 28207696880.

The previous prime is 42312506317. The next prime is 42312506441. The reversal of 42312506421 is 12460521324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42312506421 - 2¹⁴ = 42312490037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42312506441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24235 + ... + 291911.

It is an arithmetic number, because the mean of its divisors is an integer number (7052244588).

Almost surely, 2^42312506421 is an apocalyptic number.

It is an amenable number.

42312506421 is a deficient number, since it is larger than the sum of its proper divisors (14105450283).

42312506421 is a wasteful number, since it uses less digits than its factorization.

42312506421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320371.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 42312506421 in words is "forty-two billion, three hundred twelve million, five hundred six thousand, four hundred twenty-one".