12321034040520 has 96 divisors (see below), whose sum is σ = 40056663179520. Its totient is φ = 3284517586560.

The previous prime is 12321034040501. The next prime is 12321034040543. The reversal of 12321034040520 is 2504043012321.

12321034040520 is a `hidden beast` number, since 1 + 2 + 3 + 210 + 3 + 40 + 405 + 2 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4599384 + ... + 6767303.

It is an arithmetic number, because the mean of its divisors is an integer number (417256908120).

Almost surely, 2^{12321034040520} is an apocalyptic number.

12321034040520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12321034040520 is an abundant number, since it is smaller than the sum of its proper divisors (27735629139000).

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

12321034040520 is a wasteful number, since it uses less digits than its factorization.

12321034040520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11369715 (or 11369708 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 12321034040520 its reverse (2504043012321), we get a palindrome (14825077052841).

The spelling of 12321034040520 in words is "twelve trillion, three hundred twenty-one billion, thirty-four million, forty thousand, five hundred twenty".