12045430253 has 4 divisors (see below), whose sum is σ = 12370982460. Its totient is φ = 11719878048.

The previous prime is 12045430249. The next prime is 12045430261. The reversal of 12045430253 is 35203454021.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9714664969 + 2330765284 = 98563^2 + 48278^2 .

It is a cyclic number.

It is not a de Polignac number, because 12045430253 - 2² = 12045430249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045430213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162776048 + ... + 162776121.

It is an arithmetic number, because the mean of its divisors is an integer number (3092745615).

Almost surely, 2^12045430253 is an apocalyptic number.

It is an amenable number.

12045430253 is a deficient number, since it is larger than the sum of its proper divisors (325552207).

12045430253 is an equidigital number, since it uses as much as digits as its factorization.

12045430253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325552206.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 12045430253 its reverse (35203454021), we get a palindrome (47248884274).

The spelling of 12045430253 in words is "twelve billion, forty-five million, four hundred thirty thousand, two hundred fifty-three".