11525534145243 has 60 divisors (see below), whose sum is σ = 18295714734000. Its totient is φ = 7229252291328.

The previous prime is 11525534145197. The next prime is 11525534145259. The reversal of 11525534145243 is 34254143552511.

11525534145243 is a `hidden beast` number, since 1 + 1 + 5 + 2 + 553 + 4 + 1 + 4 + 52 + 43 = 666.

It is not a de Polignac number, because 11525534145243 - 2⁸ = 11525534144987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11525534145283) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 70121505 + ... + 70285677.

It is an arithmetic number, because the mean of its divisors is an integer number (304928578900).

Almost surely, 2^{11525534145243} is an apocalyptic number.

11525534145243 is a deficient number, since it is larger than the sum of its proper divisors (6770180588757).

11525534145243 is a wasteful number, since it uses less digits than its factorization.

11525534145243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167218 (or 167192 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 45.

Adding to 11525534145243 its reverse (34254143552511), we get a palindrome (45779677697754).

The spelling of 11525534145243 in words is "eleven trillion, five hundred twenty-five billion, five hundred thirty-four million, one hundred forty-five thousand, two hundred forty-three".