423141001021 has 4 divisors (see below), whose sum is σ = 441538435872. Its totient is φ = 404743566172.

The previous prime is 423141001009. The next prime is 423141001051. The reversal of 423141001021 is 120100141324.

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 423141001021 - 2¹⁵ = 423140968253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423141001021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423141001051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9198717391 + ... + 9198717436.

It is an arithmetic number, because the mean of its divisors is an integer number (110384608968).

Almost surely, 2^423141001021 is an apocalyptic number.

It is an amenable number.

423141001021 is a deficient number, since it is larger than the sum of its proper divisors (18397434851).

423141001021 is a wasteful number, since it uses less digits than its factorization.

423141001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18397434850.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 423141001021 its reverse (120100141324), we get a palindrome (543241142345).

The spelling of 423141001021 in words is "four hundred twenty-three billion, one hundred forty-one million, one thousand, twenty-one".