12342254520 has 64 divisors (see below), whose sum is σ = 37814584320. Its totient is φ = 3221239424.

The previous prime is 12342254497. The next prime is 12342254521. The reversal of 12342254520 is 2545224321.

It is a super-3 number, since 3×12342254520³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12342254521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088532 + ... + 1099811.

It is an arithmetic number, because the mean of its divisors is an integer number (590852880).

Almost surely, 2^12342254520 is an apocalyptic number.

12342254520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12342254520 is an abundant number, since it is smaller than the sum of its proper divisors (25472329800).

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

12342254520 is a wasteful number, since it uses less digits than its factorization.

12342254520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188404 (or 2188400 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 12342254520 its reverse (2545224321), we get a palindrome (14887478841).

The spelling of 12342254520 in words is "twelve billion, three hundred forty-two million, two hundred fifty-four thousand, five hundred twenty".