12612316253 has 4 divisors (see below), whose sum is σ = 13047223740. Its totient is φ = 12177408768.

The previous prime is 12612316237. The next prime is 12612316259. The reversal of 12612316253 is 35261321621.

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 9458146009 + 3154170244 = 97253^2 + 56162^2 .

It is a cyclic number.

It is not a de Polignac number, because 12612316253 - 2⁴ = 12612316237 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 (12612316259) 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 3 ways as a sum of consecutive naturals, for example, 217453700 + ... + 217453757.

It is an arithmetic number, because the mean of its divisors is an integer number (3261805935).

Almost surely, 2^12612316253 is an apocalyptic number.

It is an amenable number.

12612316253 is a deficient number, since it is larger than the sum of its proper divisors (434907487).

12612316253 is an equidigital number, since it uses as much as digits as its factorization.

12612316253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434907486.

The product of its digits is 12960, while the sum is 32.

Adding to 12612316253 its reverse (35261321621), we get a palindrome (47873637874).

The spelling of 12612316253 in words is "twelve billion, six hundred twelve million, three hundred sixteen thousand, two hundred fifty-three".