12523442453 has 2 divisors, whose sum is σ = 12523442454. Its totient is φ = 12523442452.

The previous prime is 12523442419. The next prime is 12523442461. The reversal of 12523442453 is 35424432521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10798950724 + 1724491729 = 103918^2 + 41527^2 .

It is a cyclic number.

It is not a de Polignac number, because 12523442453 - 2¹² = 12523438357 is a prime.

It is a super-2 number, since 2×12523442453² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12523442053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6261721226 + 6261721227.

It is an arithmetic number, because the mean of its divisors is an integer number (6261721227).

Almost surely, 2^12523442453 is an apocalyptic number.

It is an amenable number.

12523442453 is a deficient number, since it is larger than the sum of its proper divisors (1).

12523442453 is an equidigital number, since it uses as much as digits as its factorization.

12523442453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 35.

Adding to 12523442453 its reverse (35424432521), we get a palindrome (47947874974).

The spelling of 12523442453 in words is "twelve billion, five hundred twenty-three million, four hundred forty-two thousand, four hundred fifty-three".