12342551422 has 4 divisors (see below), whose sum is σ = 18513827136. Its totient is φ = 6171275710.

The previous prime is 12342551393. The next prime is 12342551423. The reversal of 12342551422 is 22415524321.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12342551423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3085637854 + ... + 3085637857.

It is an arithmetic number, because the mean of its divisors is an integer number (4628456784).

Almost surely, 2^12342551422 is an apocalyptic number.

12342551422 is a deficient number, since it is larger than the sum of its proper divisors (6171275714).

12342551422 is an equidigital number, since it uses as much as digits as its factorization.

12342551422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6171275713.

The product of its digits is 19200, while the sum is 31.

The spelling of 12342551422 in words is "twelve billion, three hundred forty-two million, five hundred fifty-one thousand, four hundred twenty-two".