12340615231620 has 144 divisors (see below), whose sum is σ = 40313786752512. Its totient is φ = 3037606237440.

The previous prime is 12340615231601. The next prime is 12340615231649. The reversal of 12340615231620 is 2613251604321.

12340615231620 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 0 + 6 + 1 + 5 + 23 + 1 + 620 = 666.

12340615231620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 167673349 + ... + 167746931.

It is an arithmetic number, because the mean of its divisors is an integer number (279956852448).

Almost surely, 2^{12340615231620} is an apocalyptic number.

12340615231620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12340615231620 is an abundant number, since it is smaller than the sum of its proper divisors (27973171520892).

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

12340615231620 is a wasteful number, since it uses less digits than its factorization.

12340615231620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145282 (or 145277 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 12340615231620 its reverse (2613251604321), we get a palindrome (14953866835941).

The spelling of 12340615231620 in words is "twelve trillion, three hundred forty billion, six hundred fifteen million, two hundred thirty-one thousand, six hundred twenty".