12143342340 has 48 divisors (see below), whose sum is σ = 37779288960. Its totient is φ = 3238224480.

The previous prime is 12143342333. The next prime is 12143342353. The reversal of 12143342340 is 4324334121.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11243296 + ... + 11244375.

It is an arithmetic number, because the mean of its divisors is an integer number (787068520).

Almost surely, 2^12143342340 is an apocalyptic number.

12143342340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12143342340 is an abundant number, since it is smaller than the sum of its proper divisors (25635946620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12143342340 is a wasteful number, since it uses less digits than its factorization.

12143342340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22487689 (or 22487681 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 12143342340 its reverse (4324334121), we get a palindrome (16467676461).

The spelling of 12143342340 in words is "twelve billion, one hundred forty-three million, three hundred forty-two thousand, three hundred forty".