123422311478 has 8 divisors (see below), whose sum is σ = 185616845568. Its totient is φ = 61550029624.

The previous prime is 123422311471. The next prime is 123422311531. The reversal of 123422311478 is 874113224321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123422311471) 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 3 ways as a sum of consecutive naturals, for example, 80562101 + ... + 80563632.

It is an arithmetic number, because the mean of its divisors is an integer number (23202105696).

Almost surely, 2^123422311478 is an apocalyptic number.

123422311478 is a deficient number, since it is larger than the sum of its proper divisors (62194534090).

123422311478 is a wasteful number, since it uses less digits than its factorization.

123422311478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161126118.

The product of its digits is 64512, while the sum is 38.

Adding to 123422311478 its reverse (874113224321), we get a palindrome (997535535799).

The spelling of 123422311478 in words is "one hundred twenty-three billion, four hundred twenty-two million, three hundred eleven thousand, four hundred seventy-eight".