421500044450323 has 32 divisors (see below), whose sum is σ = 431665001856000. Its totient is φ = 411481979790336.

The previous prime is 421500044450291. The next prime is 421500044450347. The reversal of 421500044450323 is 323054440005124.

It is a cyclic number.

It is not a de Polignac number, because 421500044450323 - 2⁵ = 421500044450291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421500044450123) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 24804325315 + ... + 24804342307.

It is an arithmetic number, because the mean of its divisors is an integer number (13489531308000).

Almost surely, 2^{421500044450323} is an apocalyptic number.

421500044450323 is a deficient number, since it is larger than the sum of its proper divisors (10164957405677).

421500044450323 is a wasteful number, since it uses less digits than its factorization.

421500044450323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26731.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 421500044450323 its reverse (323054440005124), we get a palindrome (744554484455447).

The spelling of 421500044450323 in words is "four hundred twenty-one trillion, five hundred billion, forty-four million, four hundred fifty thousand, three hundred twenty-three".