11531033522 has 6 divisors (see below), whose sum is σ = 17296778079. Its totient is φ = 5765440830.

The previous prime is 11531033497. The next prime is 11531033539. The reversal of 11531033522 is 22533013511.

11531033522 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5765516761 + 5765516761 = 75931^2 + 75931^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=75931.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11531033491 and 11531033500.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 113897 + ... + 189827.

Almost surely, 2^11531033522 is an apocalyptic number.

11531033522 is a deficient number, since it is larger than the sum of its proper divisors (5765744557).

11531033522 is an frugal number, since it uses more digits than its factorization.

11531033522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151864 (or 75933 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 11531033522 in words is "eleven billion, five hundred thirty-one million, thirty-three thousand, five hundred twenty-two".