12423222142 has 16 divisors (see below), whose sum is σ = 18931519872. Its totient is φ = 6112897560.

The previous prime is 12423222113. The next prime is 12423222187. The reversal of 12423222142 is 24122232421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93193 + ... + 183115.

It is an arithmetic number, because the mean of its divisors is an integer number (1183219992).

Almost surely, 2^12423222142 is an apocalyptic number.

12423222142 is a deficient number, since it is larger than the sum of its proper divisors (6508297730).

12423222142 is a wasteful number, since it uses less digits than its factorization.

12423222142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91023.

The product of its digits is 3072, while the sum is 25.

Adding to 12423222142 its reverse (24122232421), we get a palindrome (36545454563).

The spelling of 12423222142 in words is "twelve billion, four hundred twenty-three million, two hundred twenty-two thousand, one hundred forty-two".