11523531453425 has 12 divisors (see below), whose sum is σ = 14289730047180. Its totient is φ = 9218469649920.

The previous prime is 11523531453419. The next prime is 11523531453431. The reversal of 11523531453425 is 52435413532511.

It is an interprime number because it is at equal distance from previous prime (11523531453419) and next prime (11523531453431).

It can be written as a sum of positive squares in 6 ways, for example, as 3325250719729 + 8198280733696 = 1823527^2 + 2863264^2 .

It is not a de Polignac number, because 11523531453425 - 2⁸ = 11523531453169 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8225612 + ... + 9524061.

It is an arithmetic number, because the mean of its divisors is an integer number (1190810837265).

Almost surely, 2^{11523531453425} is an apocalyptic number.

It is an amenable number.

11523531453425 is a deficient number, since it is larger than the sum of its proper divisors (2766198593755).

11523531453425 is a wasteful number, since it uses less digits than its factorization.

11523531453425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17775652 (or 17775647 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 44.

Adding to 11523531453425 its reverse (52435413532511), we get a palindrome (63958944985936).

The spelling of 11523531453425 in words is "eleven trillion, five hundred twenty-three billion, five hundred thirty-one million, four hundred fifty-three thousand, four hundred twenty-five".