12064031621 has 8 divisors (see below), whose sum is σ = 12154965984. Its totient is φ = 11973438000.

The previous prime is 12064031587. The next prime is 12064031647. The reversal of 12064031621 is 12613046021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12064031621 - 2¹⁸ = 12063769477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12064031821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13886 + ... + 155951.

It is an arithmetic number, because the mean of its divisors is an integer number (1519370748).

Almost surely, 2^12064031621 is an apocalyptic number.

It is an amenable number.

12064031621 is a deficient number, since it is larger than the sum of its proper divisors (90934363).

12064031621 is a wasteful number, since it uses less digits than its factorization.

12064031621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170371.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 12064031621 its reverse (12613046021), we get a palindrome (24677077642).

The spelling of 12064031621 in words is "twelve billion, sixty-four million, thirty-one thousand, six hundred twenty-one".