11142140823 has 24 divisors (see below), whose sum is σ = 17562529296. Its totient is φ = 6750806400.

The previous prime is 11142140819. The next prime is 11142140843. The reversal of 11142140823 is 32804124111.

It is not a de Polignac number, because 11142140823 - 2² = 11142140819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142140843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 361083 + ... + 390723.

It is an arithmetic number, because the mean of its divisors is an integer number (731772054).

Almost surely, 2^11142140823 is an apocalyptic number.

11142140823 is a deficient number, since it is larger than the sum of its proper divisors (6420388473).

11142140823 is a wasteful number, since it uses less digits than its factorization.

11142140823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33455 (or 33452 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 11142140823 its reverse (32804124111), we get a palindrome (43946264934).

The spelling of 11142140823 in words is "eleven billion, one hundred forty-two million, one hundred forty thousand, eight hundred twenty-three".