121130613 has 32 divisors (see below), whose sum is σ = 185623680. Its totient is φ = 78019200.

The previous prime is 121130561. The next prime is 121130617. The reversal of 121130613 is 316031121.

121130613 is a `hidden beast` number, since 1 + 21 + 1 + 30 + 613 = 666.

It is not a de Polignac number, because 121130613 - 2⁹ = 121130101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121130617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116745 + ... + 117777.

It is an arithmetic number, because the mean of its divisors is an integer number (5800740).

Almost surely, 2^121130613 is an apocalyptic number.

It is an amenable number.

121130613 is a deficient number, since it is larger than the sum of its proper divisors (64493067).

121130613 is a wasteful number, since it uses less digits than its factorization.

121130613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1180 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 121130613 is about 11005.9353532537. The cubic root of 121130613 is about 494.7866481842.

Adding to 121130613 its reverse (316031121), we get a palindrome (437161734).

The spelling of 121130613 in words is "one hundred twenty-one million, one hundred thirty thousand, six hundred thirteen".