121130681 has 16 divisors (see below), whose sum is σ = 146674560. Its totient is φ = 97718400.

The previous prime is 121130677. The next prime is 121130743. The reversal of 121130681 is 186031121.

It is a cyclic number.

It is not a de Polignac number, because 121130681 - 2² = 121130677 is a prime.

It is a super-2 number, since 2×121130681² = 29345283759047522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121130381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17981 + ... + 23781.

It is an arithmetic number, because the mean of its divisors is an integer number (9167160).

Almost surely, 2^121130681 is an apocalyptic number.

It is an amenable number.

121130681 is a deficient number, since it is larger than the sum of its proper divisors (25543879).

121130681 is a wasteful number, since it uses less digits than its factorization.

121130681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5984.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 121130681 is about 11005.9384424955. The cubic root of 121130681 is about 494.7867407715.

The spelling of 121130681 in words is "one hundred twenty-one million, one hundred thirty thousand, six hundred eighty-one".