12037284536281 has 4 divisors (see below), whose sum is σ = 12080740437412. Its totient is φ = 11993828635152.

The previous prime is 12037284536279. The next prime is 12037284536323. The reversal of 12037284536281 is 18263548273021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8075827240000 + 3961457296281 = 2841800^2 + 1990341^2 .

It is a cyclic number.

It is not a de Polignac number, because 12037284536281 - 2¹ = 12037284536279 is a prime.

It is a super-2 number, since 2×12037284536281² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12037284530281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21727950150 + ... + 21727950703.

It is an arithmetic number, because the mean of its divisors is an integer number (3020185109353).

Almost surely, 2^{12037284536281} is an apocalyptic number.

It is an amenable number.

12037284536281 is a deficient number, since it is larger than the sum of its proper divisors (43455901131).

12037284536281 is an equidigital number, since it uses as much as digits as its factorization.

12037284536281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43455901130.

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 12037284536281 in words is "twelve trillion, thirty-seven billion, two hundred eighty-four million, five hundred thirty-six thousand, two hundred eighty-one".