121030121 has 8 divisors (see below), whose sum is σ = 122601600. Its totient is φ = 119463520.

The previous prime is 121030099. The next prime is 121030141.

121030121 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121030121 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121030141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91100 + ... + 92418.

It is an arithmetic number, because the mean of its divisors is an integer number (15325200).

Almost surely, 2^121030121 is an apocalyptic number.

It is an amenable number.

121030121 is a deficient number, since it is larger than the sum of its proper divisors (1571479).

121030121 is a wasteful number, since it uses less digits than its factorization.

121030121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 121030121 is about 11001.3690511681. The cubic root of 121030121 is about 494.6497825451.

Multiplying 121030121 by its sum of digits (11), we get a palindrome (1331331331).

The spelling of 121030121 in words is "one hundred twenty-one million, thirty thousand, one hundred twenty-one".