11610121 has 12 divisors (see below), whose sum is σ = 12687300. Its totient is φ = 10610208.

The previous prime is 11610113. The next prime is 11610161. The reversal of 11610121 is 12101611.

It can be written as a sum of positive squares in 2 ways, for example, as 2368521 + 9241600 = 1539^2 + 3040^2 .

It is not a de Polignac number, because 11610121 - 2³ = 11610113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11610161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9915 + ... + 11023.

It is an arithmetic number, because the mean of its divisors is an integer number (1057275).

Almost surely, 2^11610121 is an apocalyptic number.

It is an amenable number.

11610121 is a deficient number, since it is larger than the sum of its proper divisors (1077179).

11610121 is a wasteful number, since it uses less digits than its factorization.

11610121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1157 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 11610121 is about 3407.3627631938. The cubic root of 11610121 is about 226.4360560658.

Adding to 11610121 its reverse (12101611), we get a palindrome (23711732).

The spelling of 11610121 in words is "eleven million, six hundred ten thousand, one hundred twenty-one".