423043221012 has 48 divisors (see below), whose sum is σ = 1017351793920. Its totient is φ = 136747896192.

The previous prime is 423043220989. The next prime is 423043221017. The reversal of 423043221012 is 210122340324.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423043221017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3379243 + ... + 3502194.

It is an arithmetic number, because the mean of its divisors is an integer number (21194829040).

Almost surely, 2^423043221012 is an apocalyptic number.

It is an amenable number.

423043221012 is an abundant number, since it is smaller than the sum of its proper divisors (594308572908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423043221012 is a wasteful number, since it uses less digits than its factorization.

423043221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6881600 (or 6881598 counting only the distinct ones).

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

Adding to 423043221012 its reverse (210122340324), we get a palindrome (633165561336).

The spelling of 423043221012 in words is "four hundred twenty-three billion, forty-three million, two hundred twenty-one thousand, twelve".