123312022 has 4 divisors (see below), whose sum is σ = 184968036. Its totient is φ = 61656010.

The previous prime is 123312001. The next prime is 123312023. The reversal of 123312022 is 220213321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220213321 = 631 ⋅348991.

It is a junction number, because it is equal to n+sod(n) for n = 123311987 and 123312005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123312023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30828004 + ... + 30828007.

It is an arithmetic number, because the mean of its divisors is an integer number (46242009).

Almost surely, 2^123312022 is an apocalyptic number.

123312022 is a deficient number, since it is larger than the sum of its proper divisors (61656014).

123312022 is an equidigital number, since it uses as much as digits as its factorization.

123312022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61656013.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 123312022 is about 11104.5946346546. The cubic root of 123312022 is about 497.7391552367.

Adding to 123312022 its reverse (220213321), we get a palindrome (343525343).

The spelling of 123312022 in words is "one hundred twenty-three million, three hundred twelve thousand, twenty-two".