420231420506 has 8 divisors (see below), whose sum is σ = 637429683060. Its totient is φ = 207754859488.

The previous prime is 420231420467. The next prime is 420231420523. The reversal of 420231420506 is 605024132024.

It can be written as a sum of positive squares in 2 ways, for example, as 419482905625 + 748514881 = 647675^2 + 27359^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180425161 + ... + 1180425516.

Almost surely, 2^420231420506 is an apocalyptic number.

420231420506 is a deficient number, since it is larger than the sum of its proper divisors (217198262554).

420231420506 is a wasteful number, since it uses less digits than its factorization.

420231420506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360850768.

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 420231420506 in words is "four hundred twenty billion, two hundred thirty-one million, four hundred twenty thousand, five hundred six".