11531061524 has 6 divisors (see below), whose sum is σ = 20179357674. Its totient is φ = 5765530760.

The previous prime is 11531061497. The next prime is 11531061541. The reversal of 11531061524 is 42516013511.

It can be written as a sum of positive squares in only one way, i.e., 8787187600 + 2743873924 = 93740^2 + 52382^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1441382687 + ... + 1441382694.

It is an arithmetic number, because the mean of its divisors is an integer number (3363226279).

Almost surely, 2^11531061524 is an apocalyptic number.

It is an amenable number.

11531061524 is a deficient number, since it is larger than the sum of its proper divisors (8648296150).

11531061524 is a wasteful number, since it uses less digits than its factorization.

11531061524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882765385 (or 2882765383 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 11531061524 in words is "eleven billion, five hundred thirty-one million, sixty-one thousand, five hundred twenty-four".