12315605143620 has 48 divisors (see below), whose sum is σ = 34487090507520. Its totient is φ = 3283837933056.

The previous prime is 12315605143519. The next prime is 12315605143661. The reversal of 12315605143620 is 2634150651321.

It is a happy number.

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, 9492837 + ... + 10711916.

It is an arithmetic number, because the mean of its divisors is an integer number (718481052240).

Almost surely, 2^{12315605143620} is an apocalyptic number.

12315605143620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12315605143620 is an abundant number, since it is smaller than the sum of its proper divisors (22171485363900).

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

12315605143620 is a wasteful number, since it uses less digits than its factorization.

12315605143620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20214924 (or 20214922 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

Adding to 12315605143620 its reverse (2634150651321), we get a palindrome (14949755794941).

The spelling of 12315605143620 in words is "twelve trillion, three hundred fifteen billion, six hundred five million, one hundred forty-three thousand, six hundred twenty".