12036231641 has 4 divisors (see below), whose sum is σ = 13755693312. Its totient is φ = 10316769972.

The previous prime is 12036231607. The next prime is 12036231643. The reversal of 12036231641 is 14613263021.

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 12036231641 - 2²⁶ = 11969122777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12036231643) 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, 859730825 + ... + 859730838.

It is an arithmetic number, because the mean of its divisors is an integer number (3438923328).

Almost surely, 2^12036231641 is an apocalyptic number.

It is an amenable number.

12036231641 is a deficient number, since it is larger than the sum of its proper divisors (1719461671).

12036231641 is an equidigital number, since it uses as much as digits as its factorization.

12036231641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719461670.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 12036231641 its reverse (14613263021), we get a palindrome (26649494662).

The spelling of 12036231641 in words is "twelve billion, thirty-six million, two hundred thirty-one thousand, six hundred forty-one".