423512122 has 16 divisors (see below), whose sum is σ = 693374400. Its totient is φ = 192407040.

The previous prime is 423512113. The next prime is 423512123. The reversal of 423512122 is 221215324.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 423512093 and 423512102.

It is not an unprimeable number, because it can be changed into a prime (423512123) 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, 55579 + ... + 62737.

It is an arithmetic number, because the mean of its divisors is an integer number (43335900).

Almost surely, 2^423512122 is an apocalyptic number.

423512122 is a deficient number, since it is larger than the sum of its proper divisors (269862278).

423512122 is a wasteful number, since it uses less digits than its factorization.

423512122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9861.

The product of its digits is 960, while the sum is 22.

The square root of 423512122 is about 20579.4101470377. The cubic root of 423512122 is about 750.9688941569.

Adding to 423512122 its reverse (221215324), we get a palindrome (644727446).

The spelling of 423512122 in words is "four hundred twenty-three million, five hundred twelve thousand, one hundred twenty-two".