12135144363 has 4 divisors (see below), whose sum is σ = 16180192488. Its totient is φ = 8090096240.

The previous prime is 12135144361. The next prime is 12135144377. The reversal of 12135144363 is 36344153121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12135144363 - 2¹ = 12135144361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12135144361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2022524058 + ... + 2022524063.

It is an arithmetic number, because the mean of its divisors is an integer number (4045048122).

Almost surely, 2^12135144363 is an apocalyptic number.

12135144363 is a deficient number, since it is larger than the sum of its proper divisors (4045048125).

12135144363 is an equidigital number, since it uses as much as digits as its factorization.

12135144363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045048124.

The product of its digits is 25920, while the sum is 33.

Adding to 12135144363 its reverse (36344153121), we get a palindrome (48479297484).

The spelling of 12135144363 in words is "twelve billion, one hundred thirty-five million, one hundred forty-four thousand, three hundred sixty-three".