12041702521 has 4 divisors (see below), whose sum is σ = 12045888000. Its totient is φ = 12037517044.

The previous prime is 12041702461. The next prime is 12041702537. The reversal of 12041702521 is 12520714021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12041702521 - 2²³ = 12033313913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12041702551) 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, 2088421 + ... + 2094178.

It is an arithmetic number, because the mean of its divisors is an integer number (3011472000).

Almost surely, 2^12041702521 is an apocalyptic number.

It is an amenable number.

12041702521 is a deficient number, since it is larger than the sum of its proper divisors (4185479).

12041702521 is an equidigital number, since it uses as much as digits as its factorization.

12041702521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4185478.

The product of its (nonzero) digits is 1120, while the sum is 25.

The spelling of 12041702521 in words is "twelve billion, forty-one million, seven hundred two thousand, five hundred twenty-one".