421324542034431 has 192 divisors, whose sum is σ = 705821784422400. Its totient is φ = 222201574043904.

The previous prime is 421324542034373. The next prime is 421324542034439. The reversal of 421324542034431 is 134430245423124.

It is not a de Polignac number, because 421324542034431 - 2¹⁸ = 421324541772287 is a prime.

It is a super-2 number, since 2×421324542034431² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421324542034439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12735362416 + ... + 12735395498.

It is an arithmetic number, because the mean of its divisors is an integer number (3676155127200).

Almost surely, 2^{421324542034431} is an apocalyptic number.

421324542034431 is a deficient number, since it is larger than the sum of its proper divisors (284497242387969).

421324542034431 is a wasteful number, since it uses less digits than its factorization.

421324542034431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33778 (or 33771 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 42.

Adding to 421324542034431 its reverse (134430245423124), we get a palindrome (555754787457555).

The spelling of 421324542034431 in words is "four hundred twenty-one trillion, three hundred twenty-four billion, five hundred forty-two million, thirty-four thousand, four hundred thirty-one".