12635044323 has 8 divisors (see below), whose sum is σ = 18378246336. Its totient is φ = 7657602600.

The previous prime is 12635044321. The next prime is 12635044369. The reversal of 12635044323 is 32344053621.

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 12635044323 - 2¹ = 12635044321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 382880131 = 12635044323 / (1 + 2 + 6 + 3 + 5 + 0 + 4 + 4 + 3 + 2 + 3).

It is not an unprimeable number, because it can be changed into a prime (12635044321) 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, 191440033 + ... + 191440098.

It is an arithmetic number, because the mean of its divisors is an integer number (2297280792).

Almost surely, 2^12635044323 is an apocalyptic number.

12635044323 is a deficient number, since it is larger than the sum of its proper divisors (5743202013).

12635044323 is a wasteful number, since it uses less digits than its factorization.

12635044323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382880145.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 12635044323 its reverse (32344053621), we get a palindrome (44979097944).

The spelling of 12635044323 in words is "twelve billion, six hundred thirty-five million, forty-four thousand, three hundred twenty-three".