423040123212 has 24 divisors (see below), whose sum is σ = 1128106995456. Its totient is φ = 120868606608.

The previous prime is 423040123211. The next prime is 423040123229. The reversal of 423040123212 is 212321040324.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (423040123211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2518095888 + ... + 2518096055.

It is an arithmetic number, because the mean of its divisors is an integer number (47004458144).

Almost surely, 2^423040123212 is an apocalyptic number.

423040123212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

423040123212 is an abundant number, since it is smaller than the sum of its proper divisors (705066872244).

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

423040123212 is a wasteful number, since it uses less digits than its factorization.

423040123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5036191957 (or 5036191955 counting only the distinct ones).

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

Adding to 423040123212 its reverse (212321040324), we get a palindrome (635361163536).

The spelling of 423040123212 in words is "four hundred twenty-three billion, forty million, one hundred twenty-three thousand, two hundred twelve".