12442144253 has 64 divisors (see below), whose sum is σ = 16887467520. Its totient is φ = 8883302400.

The previous prime is 12442144249. The next prime is 12442144279. The reversal of 12442144253 is 35244124421.

It is not a de Polignac number, because 12442144253 - 2² = 12442144249 is a prime.

It is a super-2 number, since 2×12442144253² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442141253) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3385625 + ... + 3389297.

It is an arithmetic number, because the mean of its divisors is an integer number (263866680).

Almost surely, 2^12442144253 is an apocalyptic number.

It is an amenable number.

12442144253 is a deficient number, since it is larger than the sum of its proper divisors (4445323267).

12442144253 is a wasteful number, since it uses less digits than its factorization.

12442144253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798.

The product of its digits is 30720, while the sum is 32.

Adding to 12442144253 its reverse (35244124421), we get a palindrome (47686268674).

The spelling of 12442144253 in words is "twelve billion, four hundred forty-two million, one hundred forty-four thousand, two hundred fifty-three".