421204312023 has 32 divisors (see below), whose sum is σ = 633817868544. Its totient is φ = 246583200000.

The previous prime is 421204312021. The next prime is 421204312033. The reversal of 421204312023 is 320213402124.

It is a happy number.

It is not a de Polignac number, because 421204312023 - 2¹ = 421204312021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421204311984 and 421204312002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421204312021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1404493 + ... + 1677798.

It is an arithmetic number, because the mean of its divisors is an integer number (19806808392).

Almost surely, 2^421204312023 is an apocalyptic number.

421204312023 is a deficient number, since it is larger than the sum of its proper divisors (212613556521).

421204312023 is a wasteful number, since it uses less digits than its factorization.

421204312023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082447.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 421204312023 its reverse (320213402124), we get a palindrome (741417714147).

The spelling of 421204312023 in words is "four hundred twenty-one billion, two hundred four million, three hundred twelve thousand, twenty-three".