4021423122430 has 64 divisors (see below), whose sum is σ = 8539921539072. Its totient is φ = 1334231406720.

The previous prime is 4021423122397. The next prime is 4021423122499. The reversal of 4021423122430 is 342213241204.

It is a super-2 number, since 2×4021423122430² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66278367 + ... + 66339013.

It is an arithmetic number, because the mean of its divisors is an integer number (133436274048).

Almost surely, 2^{4021423122430} is an apocalyptic number.

4021423122430 is an abundant number, since it is smaller than the sum of its proper divisors (4518498416642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4021423122430 is a wasteful number, since it uses less digits than its factorization.

4021423122430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91249.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 4021423122430 its reverse (342213241204), we get a palindrome (4363636363634).

The spelling of 4021423122430 in words is "four trillion, twenty-one billion, four hundred twenty-three million, one hundred twenty-two thousand, four hundred thirty".