11231124529 has 3 divisors (see below), whose sum is σ = 11231230507. Its totient is φ = 11231018552.

The previous prime is 11231124521. The next prime is 11231124607. The reversal of 11231124529 is 92542113211.

The square root of 11231124529 is 105977.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 5658800625 + 5572323904 = 75225^2 + 74648^2 .

It is not a de Polignac number, because 11231124529 - 2³ = 11231124521 is a prime.

It is a super-3 number, since 3×11231124529³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11231124529.

It is not an unprimeable number, because it can be changed into a prime (11231124521) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 52989 + ... + 158965.

Almost surely, 2^11231124529 is an apocalyptic number.

11231124529 is the 105977-th square number.

11231124529 is the 52989-th centered octagonal number.

It is an amenable number.

11231124529 is a deficient number, since it is larger than the sum of its proper divisors (105978).

11231124529 is an frugal number, since it uses more digits than its factorization.

11231124529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211954 (or 105977 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The spelling of 11231124529 in words is "eleven billion, two hundred thirty-one million, one hundred twenty-four thousand, five hundred twenty-nine".