123213422 has 4 divisors (see below), whose sum is σ = 184820136. Its totient is φ = 61606710.

The previous prime is 123213401. The next prime is 123213427. The reversal of 123213422 is 224312321.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 123213394 and 123213403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123213427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30803354 + ... + 30803357.

It is an arithmetic number, because the mean of its divisors is an integer number (46205034).

Almost surely, 2^123213422 is an apocalyptic number.

123213422 is a deficient number, since it is larger than the sum of its proper divisors (61606714).

123213422 is an equidigital number, since it uses as much as digits as its factorization.

123213422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61606713.

The product of its digits is 576, while the sum is 20.

The square root of 123213422 is about 11100.1541430739. The cubic root of 123213422 is about 497.6064561796.

Adding to 123213422 its reverse (224312321), we get a palindrome (347525743).

The spelling of 123213422 in words is "one hundred twenty-three million, two hundred thirteen thousand, four hundred twenty-two".