12056621530340 has 12 divisors (see below), whose sum is σ = 25318905213756. Its totient is φ = 4822648612128.

The previous prime is 12056621530333. The next prime is 12056621530357. The reversal of 12056621530340 is 4303512665021.

It can be written as a sum of positive squares in 2 ways, for example, as 4172925615076 + 7883695915264 = 2042774^2 + 2807792^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12056621530294 and 12056621530303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301415538239 + ... + 301415538278.

It is an arithmetic number, because the mean of its divisors is an integer number (2109908767813).

Almost surely, 2^{12056621530340} is an apocalyptic number.

12056621530340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12056621530340 is an abundant number, since it is smaller than the sum of its proper divisors (13262283683416).

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

12056621530340 is a wasteful number, since it uses less digits than its factorization.

12056621530340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602831076526 (or 602831076524 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 12056621530340 in words is "twelve trillion, fifty-six billion, six hundred twenty-one million, five hundred thirty thousand, three hundred forty".