420430221422451 has 24 divisors (see below), whose sum is σ = 629893338175920. Its totient is φ = 280236483551232.

The previous prime is 420430221422441. The next prime is 420430221422503. The reversal of 420430221422451 is 154224122034024.

420430221422451 is a `hidden beast` number, since 4 + 2 + 0 + 4 + 3 + 0 + 221 + 422 + 4 + 5 + 1 = 666.

It is not a de Polignac number, because 420430221422451 - 2⁹ = 420430221421939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420430221422401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153985710 + ... + 156692243.

It is an arithmetic number, because the mean of its divisors is an integer number (26245555757330).

Almost surely, 2^{420430221422451} is an apocalyptic number.

420430221422451 is a deficient number, since it is larger than the sum of its proper divisors (209463116753469).

420430221422451 is an equidigital number, since it uses as much as digits as its factorization.

420430221422451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310683537 (or 310683525 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 36.

Adding to 420430221422451 its reverse (154224122034024), we get a palindrome (574654343456475).

The spelling of 420430221422451 in words is "four hundred twenty trillion, four hundred thirty billion, two hundred twenty-one million, four hundred twenty-two thousand, four hundred fifty-one".