12621001723 has 8 divisors (see below), whose sum is σ = 13773499200. Its totient is φ = 11469359880.

The previous prime is 12621001711. The next prime is 12621001733. The reversal of 12621001723 is 32710012621.

It is a happy number.

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

It is not a de Polignac number, because 12621001723 - 2²⁹ = 12084130811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12621001733) 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 7 ways as a sum of consecutive naturals, for example, 182865 + ... + 242242.

It is an arithmetic number, because the mean of its divisors is an integer number (1721687400).

Almost surely, 2^12621001723 is an apocalyptic number.

12621001723 is a deficient number, since it is larger than the sum of its proper divisors (1152497477).

12621001723 is a wasteful number, since it uses less digits than its factorization.

12621001723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427817.

The product of its (nonzero) digits is 1008, while the sum is 25.

The spelling of 12621001723 in words is "twelve billion, six hundred twenty-one million, one thousand, seven hundred twenty-three".