11522543242 has 32 divisors (see below), whose sum is σ = 20058969600. Its totient is φ = 4862191488.

The previous prime is 11522543239. The next prime is 11522543273. The reversal of 11522543242 is 24234522511.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278448 + ... + 317140.

It is an arithmetic number, because the mean of its divisors is an integer number (626842800).

Almost surely, 2^11522543242 is an apocalyptic number.

11522543242 is a deficient number, since it is larger than the sum of its proper divisors (8536426358).

11522543242 is a wasteful number, since it uses less digits than its factorization.

11522543242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39030.

The product of its digits is 19200, while the sum is 31.

The spelling of 11522543242 in words is "eleven billion, five hundred twenty-two million, five hundred forty-three thousand, two hundred forty-two".