11488105138 has 4 divisors (see below), whose sum is σ = 17232157710. Its totient is φ = 5744052568.

The previous prime is 11488105133. The next prime is 11488105141. The reversal of 11488105138 is 83150188411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10269187569 + 1218917569 = 101337^2 + 34913^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11488105138.

It is not an unprimeable number, because it can be changed into a prime (11488105133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2872026283 + ... + 2872026286.

Almost surely, 2^11488105138 is an apocalyptic number.

11488105138 is a deficient number, since it is larger than the sum of its proper divisors (5744052572).

11488105138 is an equidigital number, since it uses as much as digits as its factorization.

11488105138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744052571.

The product of its (nonzero) digits is 30720, while the sum is 40.

The spelling of 11488105138 in words is "eleven billion, four hundred eighty-eight million, one hundred five thousand, one hundred thirty-eight".