421323320214531 has 24 divisors (see below), whose sum is σ = 726090075655440. Its totient is φ = 240756182978976.

The previous prime is 421323320214521. The next prime is 421323320214547. The reversal of 421323320214531 is 135412023323124.

421323320214531 is a `hidden beast` number, since 4 + 2 + 1 + 323 + 320 + 2 + 1 + 4 + 5 + 3 + 1 = 666.

It is not a de Polignac number, because 421323320214531 - 2¹⁴ = 421323320198147 is a prime.

It is a super-2 number, since 2×421323320214531² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421323320214521) 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, 159230278426 + ... + 159230281071.

It is an arithmetic number, because the mean of its divisors is an integer number (30253753152310).

Almost surely, 2^{421323320214531} is an apocalyptic number.

421323320214531 is a deficient number, since it is larger than the sum of its proper divisors (304766755440909).

421323320214531 is a wasteful number, since it uses less digits than its factorization.

421323320214531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318460559520 (or 318460559507 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 421323320214531 its reverse (135412023323124), we get a palindrome (556735343537655).

The spelling of 421323320214531 in words is "four hundred twenty-one trillion, three hundred twenty-three billion, three hundred twenty million, two hundred fourteen thousand, five hundred thirty-one".