421331002023 has 16 divisors (see below), whose sum is σ = 591029915616. Its totient is φ = 266630031360.

The previous prime is 421331001983. The next prime is 421331002031. The reversal of 421331002023 is 320200133124.

It is not a de Polignac number, because 421331002023 - 2¹⁴ = 421330985639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421331000023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46285386 + ... + 46294487.

It is an arithmetic number, because the mean of its divisors is an integer number (36939369726).

Almost surely, 2^421331002023 is an apocalyptic number.

421331002023 is a deficient number, since it is larger than the sum of its proper divisors (169698913593).

421331002023 is a wasteful number, since it uses less digits than its factorization.

421331002023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92579954.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 421331002023 its reverse (320200133124), we get a palindrome (741531135147).

The spelling of 421331002023 in words is "four hundred twenty-one billion, three hundred thirty-one million, two thousand, twenty-three".