11132121 has 48 divisors (see below), whose sum is σ = 20139392. Its totient is φ = 5322240.

The previous prime is 11132113. The next prime is 11132123. The reversal of 11132121 is 12123111.

11132121 is a nontrivial binomial coefficient, being equal to C(4719, 2).

It is not a de Polignac number, because 11132121 - 2³ = 11132113 is a prime.

11132121 is a modest number, since divided by 2121 gives 1113 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 11132097 and 11132106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11132123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32865 + ... + 33201.

Almost surely, 2^11132121 is an apocalyptic number.

11132121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11132121 is the 4718-th triangular number.

It is an amenable number.

11132121 is a deficient number, since it is larger than the sum of its proper divisors (9007271).

11132121 is a wasteful number, since it uses less digits than its factorization.

11132121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382 (or 371 counting only the distinct ones).

The product of its digits is 12, while the sum is 12.

The square root of 11132121 is about 3336.4833282964. The cubic root of 11132121 is about 223.2848752567.

Adding to 11132121 its reverse (12123111), we get a palindrome (23255232).

The spelling of 11132121 in words is "eleven million, one hundred thirty-two thousand, one hundred twenty-one".