423223212402 has 24 divisors (see below), whose sum is σ = 918217819584. Its totient is φ = 140884528344.

The previous prime is 423223212331. The next prime is 423223212403. The reversal of 423223212402 is 204212322324.

423223212402 is a `hidden beast` number, since 4 + 23 + 2 + 23 + 212 + 402 = 666.

It is not an unprimeable number, because it can be changed into a prime (423223212403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15809238 + ... + 15835985.

It is an arithmetic number, because the mean of its divisors is an integer number (38259075816).

Almost surely, 2^423223212402 is an apocalyptic number.

423223212402 is an abundant number, since it is smaller than the sum of its proper divisors (494994607182).

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

423223212402 is a wasteful number, since it uses less digits than its factorization.

423223212402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31645974 (or 31645971 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 423223212402 its reverse (204212322324), we get a palindrome (627435534726).

The spelling of 423223212402 in words is "four hundred twenty-three billion, two hundred twenty-three million, two hundred twelve thousand, four hundred two".