12040588621 has 4 divisors (see below), whose sum is σ = 12103628544. Its totient is φ = 11977548700.

The previous prime is 12040588519. The next prime is 12040588631. The reversal of 12040588621 is 12688504021.

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 12040588621 - 2¹⁷ = 12040457549 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 (12040588631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31519675 + ... + 31520056.

It is an arithmetic number, because the mean of its divisors is an integer number (3025907136).

Almost surely, 2^12040588621 is an apocalyptic number.

It is an amenable number.

12040588621 is a deficient number, since it is larger than the sum of its proper divisors (63039923).

12040588621 is an equidigital number, since it uses as much as digits as its factorization.

12040588621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63039922.

The product of its (nonzero) digits is 30720, while the sum is 37.

The spelling of 12040588621 in words is "twelve billion, forty million, five hundred eighty-eight thousand, six hundred twenty-one".