12643532103 has 8 divisors (see below), whose sum is σ = 16859849328. Its totient is φ = 8428118144.

The previous prime is 12643532081. The next prime is 12643532113. The reversal of 12643532103 is 30123534621.

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 12643532103 - 2⁹ = 12643531591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12643532113) 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, 192450 + ... + 249647.

It is an arithmetic number, because the mean of its divisors is an integer number (2107481166).

Almost surely, 2^12643532103 is an apocalyptic number.

12643532103 is a deficient number, since it is larger than the sum of its proper divisors (4216317225).

12643532103 is an equidigital number, since it uses as much as digits as its factorization.

12643532103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451633.

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 12643532103 in words is "twelve billion, six hundred forty-three million, five hundred thirty-two thousand, one hundred three".