11143601523 has 12 divisors (see below), whose sum is σ = 16098195568. Its totient is φ = 7428198960.

The previous prime is 11143601419. The next prime is 11143601531. The reversal of 11143601523 is 32510634111.

It is a happy number.

11143601523 is a `hidden beast` number, since 1 + 1 + 1 + 4 + 3 + 601 + 52 + 3 = 666.

It is not a de Polignac number, because 11143601523 - 2⁹ = 11143601011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11143601123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14313 + ... + 149973.

Almost surely, 2^11143601523 is an apocalyptic number.

11143601523 is a deficient number, since it is larger than the sum of its proper divisors (4954594045).

11143601523 is a wasteful number, since it uses less digits than its factorization.

11143601523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144794 (or 144791 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 11143601523 in words is "eleven billion, one hundred forty-three million, six hundred one thousand, five hundred twenty-three".