11543012522 has 8 divisors (see below), whose sum is σ = 17355647172. Its totient is φ = 5757796800.

The previous prime is 11543012521. The next prime is 11543012527. The reversal of 11543012522 is 22521034511.

It can be written as a sum of positive squares in 2 ways, for example, as 9482669641 + 2060342881 = 97379^2 + 45391^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11543012522² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11543012491 and 11543012500.

It is not an unprimeable number, because it can be changed into a prime (11543012521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6853679 + ... + 6855362.

Almost surely, 2^11543012522 is an apocalyptic number.

11543012522 is a deficient number, since it is larger than the sum of its proper divisors (5812634650).

11543012522 is a wasteful number, since it uses less digits than its factorization.

11543012522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13709464.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 11543012522 in words is "eleven billion, five hundred forty-three million, twelve thousand, five hundred twenty-two".