11142051105 has 16 divisors (see below), whose sum is σ = 17905135680. Its totient is φ = 5916475968.

The previous prime is 11142051103. The next prime is 11142051119. The reversal of 11142051105 is 50115024111.

It is not a de Polignac number, because 11142051105 - 2¹ = 11142051103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11142051103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1618407 + ... + 1625276.

It is an arithmetic number, because the mean of its divisors is an integer number (1119070980).

Almost surely, 2^11142051105 is an apocalyptic number.

11142051105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11142051105 is a deficient number, since it is larger than the sum of its proper divisors (6763084575).

11142051105 is a wasteful number, since it uses less digits than its factorization.

11142051105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243920.

The product of its (nonzero) digits is 200, while the sum is 21.

Adding to 11142051105 its reverse (50115024111), we get a palindrome (61257075216).

The spelling of 11142051105 in words is "eleven billion, one hundred forty-two million, fifty-one thousand, one hundred five".