423112322021 has 4 divisors (see below), whose sum is σ = 423118963872. Its totient is φ = 423105680172.

The previous prime is 423112321991. The next prime is 423112322033. The reversal of 423112322021 is 120223211324.

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 423112322021 - 2³⁴ = 405932452837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423112322041) 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, 3224435 + ... + 3353088.

It is an arithmetic number, because the mean of its divisors is an integer number (105779740968).

Almost surely, 2^423112322021 is an apocalyptic number.

It is an amenable number.

423112322021 is a deficient number, since it is larger than the sum of its proper divisors (6641851).

423112322021 is an equidigital number, since it uses as much as digits as its factorization.

423112322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641850.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 423112322021 its reverse (120223211324), we get a palindrome (543335533345).

The spelling of 423112322021 in words is "four hundred twenty-three billion, one hundred twelve million, three hundred twenty-two thousand, twenty-one".