12059631021 has 8 divisors (see below), whose sum is σ = 16245276544. Its totient is φ = 7956869760.

The previous prime is 12059631019. The next prime is 12059631043. The reversal of 12059631021 is 12013695021.

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

It is not a de Polignac number, because 12059631021 - 2¹ = 12059631019 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12059631021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12059631011) 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, 20720725 + ... + 20721306.

It is an arithmetic number, because the mean of its divisors is an integer number (2030659568).

Almost surely, 2^12059631021 is an apocalyptic number.

It is an amenable number.

12059631021 is a deficient number, since it is larger than the sum of its proper divisors (4185645523).

12059631021 is an equidigital number, since it uses as much as digits as its factorization.

12059631021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41442131.

The product of its (nonzero) digits is 3240, while the sum is 30.

The spelling of 12059631021 in words is "twelve billion, fifty-nine million, six hundred thirty-one thousand, twenty-one".