421433243020001 has 4 divisors (see below), whose sum is σ = 421433577182400. Its totient is φ = 421432908857604.

The previous prime is 421433243019947. The next prime is 421433243020039. The reversal of 421433243020001 is 100020342334124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 421433243020001 - 2⁶ = 421433243019937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421433243020051) 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, 165182261 + ... + 167714178.

It is an arithmetic number, because the mean of its divisors is an integer number (105358394295600).

Almost surely, 2^{421433243020001} is an apocalyptic number.

It is an amenable number.

421433243020001 is a deficient number, since it is larger than the sum of its proper divisors (334162399).

421433243020001 is a wasteful number, since it uses less digits than its factorization.

421433243020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334162398.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 421433243020001 its reverse (100020342334124), we get a palindrome (521453585354125).

The spelling of 421433243020001 in words is "four hundred twenty-one trillion, four hundred thirty-three billion, two hundred forty-three million, twenty thousand, one".