421430225023 has 4 divisors (see below), whose sum is σ = 421459178008. Its totient is φ = 421401272040.

The previous prime is 421430225017. The next prime is 421430225033. The reversal of 421430225023 is 320522034124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421430225023 - 2⁵ = 421430224991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421430224982 and 421430225000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421430225033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14454648 + ... + 14483773.

It is an arithmetic number, because the mean of its divisors is an integer number (105364794502).

Almost surely, 2^421430225023 is an apocalyptic number.

421430225023 is a deficient number, since it is larger than the sum of its proper divisors (28952985).

421430225023 is a wasteful number, since it uses less digits than its factorization.

421430225023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28952984.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 421430225023 its reverse (320522034124), we get a palindrome (741952259147).

The spelling of 421430225023 in words is "four hundred twenty-one billion, four hundred thirty million, two hundred twenty-five thousand, twenty-three".