11132149081 has 3 divisors (see below), whose sum is σ = 11132254591. Its totient is φ = 11132043572.

The previous prime is 11132149043. The next prime is 11132149129. The reversal of 11132149081 is 18094123111.

The square root of 11132149081 is 105509.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 7515329481 + 3616819600 = 86691^2 + 60140^2 .

It is not a de Polignac number, because 11132149081 - 2¹⁵ = 11132116313 is a prime.

It is a super-2 number, since 2×11132149081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11132140081) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 52755 + ... + 158263.

Almost surely, 2^11132149081 is an apocalyptic number.

11132149081 is the 105509-th square number.

11132149081 is the 52755-th centered octagonal number.

It is an amenable number.

11132149081 is a deficient number, since it is larger than the sum of its proper divisors (105510).

11132149081 is an frugal number, since it uses more digits than its factorization.

11132149081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211018 (or 105509 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 31.

The spelling of 11132149081 in words is "eleven billion, one hundred thirty-two million, one hundred forty-nine thousand, eighty-one".