12342342423240 has 96 divisors (see below), whose sum is σ = 40662100809720. Its totient is φ = 3246205123584.

The previous prime is 12342342423233. The next prime is 12342342423247. The reversal of 12342342423240 is 4232424324321.

12342342423240 is a `hidden beast` number, since 1 + 2 + 3 + 42 + 342 + 4 + 232 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (12342342423233) and next prime (12342342423247).

It can be written as a sum of positive squares in 4 ways, for example, as 7131431384676 + 5210911038564 = 2670474^2 + 2282742^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12342342423195 and 12342342423204.

It is not an unprimeable number, because it can be changed into a prime (12342342423247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234797587 + ... + 234850146.

Almost surely, 2^{12342342423240} is an apocalyptic number.

12342342423240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12342342423240 is an abundant number, since it is smaller than the sum of its proper divisors (28319758386480).

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

12342342423240 is a wasteful number, since it uses less digits than its factorization.

12342342423240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469647823 (or 469647816 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 12342342423240 its reverse (4232424324321), we get a palindrome (16574766747561).

The spelling of 12342342423240 in words is "twelve trillion, three hundred forty-two billion, three hundred forty-two million, four hundred twenty-three thousand, two hundred forty".