12342202540 has 12 divisors (see below), whose sum is σ = 25918625376. Its totient is φ = 4936881008.

The previous prime is 12342202531. The next prime is 12342202547. The reversal of 12342202540 is 4520224321.

It is not an unprimeable number, because it can be changed into a prime (12342202547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308555044 + ... + 308555083.

It is an arithmetic number, because the mean of its divisors is an integer number (2159885448).

Almost surely, 2^12342202540 is an apocalyptic number.

12342202540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12342202540 is an abundant number, since it is smaller than the sum of its proper divisors (13576422836).

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

12342202540 is a wasteful number, since it uses less digits than its factorization.

12342202540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617110136 (or 617110134 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 12342202540 its reverse (4520224321), we get a palindrome (16862426861).

The spelling of 12342202540 in words is "twelve billion, three hundred forty-two million, two hundred two thousand, five hundred forty".