11730121 has 12 divisors (see below), whose sum is σ = 13117440. Its totient is φ = 10473840.

The previous prime is 11730109. The next prime is 11730127. The reversal of 11730121 is 12103711.

It is not a de Polignac number, because 11730121 - 2²¹ = 9632969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11730095 and 11730104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11730127) 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, 4120 + ... + 6358.

It is an arithmetic number, because the mean of its divisors is an integer number (1093120).

Almost surely, 2^11730121 is an apocalyptic number.

It is an amenable number.

11730121 is a deficient number, since it is larger than the sum of its proper divisors (1387319).

11730121 is a wasteful number, since it uses less digits than its factorization.

11730121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296 (or 2283 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 11730121 is about 3424.9264225674. The cubic root of 11730121 is about 227.2135169440.

Adding to 11730121 its reverse (12103711), we get a palindrome (23833832).

The spelling of 11730121 in words is "eleven million, seven hundred thirty thousand, one hundred twenty-one".