11131141064 has 8 divisors (see below), whose sum is σ = 20870889510. Its totient is φ = 5565570528.

The previous prime is 11131141057. The next prime is 11131141097. The reversal of 11131141064 is 46014113111.

It can be written as a sum of positive squares in only one way, i.e., 9475464964 + 1655676100 = 97342^2 + 40690^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695696309 + ... + 695696324.

Almost surely, 2^11131141064 is an apocalyptic number.

It is an amenable number.

11131141064 is a deficient number, since it is larger than the sum of its proper divisors (9739748446).

11131141064 is a wasteful number, since it uses less digits than its factorization.

11131141064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391392639 (or 1391392635 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 11131141064 its reverse (46014113111), we get a palindrome (57145254175).

The spelling of 11131141064 in words is "eleven billion, one hundred thirty-one million, one hundred forty-one thousand, sixty-four".