11131121132 has 6 divisors (see below), whose sum is σ = 19479461988. Its totient is φ = 5565560564.

The previous prime is 11131121129. The next prime is 11131121137. The reversal of 11131121132 is 23112113111.

It is a super-2 number, since 2×11131121132² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11131121132.

It is not an unprimeable number, because it can be changed into a prime (11131121137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1391390138 + ... + 1391390145.

It is an arithmetic number, because the mean of its divisors is an integer number (3246576998).

Almost surely, 2^11131121132 is an apocalyptic number.

It is an amenable number.

11131121132 is a deficient number, since it is larger than the sum of its proper divisors (8348340856).

11131121132 is a wasteful number, since it uses less digits than its factorization.

11131121132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782780287 (or 2782780285 counting only the distinct ones).

The product of its digits is 36, while the sum is 17.

Adding to 11131121132 its reverse (23112113111), we get a palindrome (34243234243).

The spelling of 11131121132 in words is "eleven billion, one hundred thirty-one million, one hundred twenty-one thousand, one hundred thirty-two".