121030113 has 4 divisors (see below), whose sum is σ = 161373488. Its totient is φ = 80686740.

The previous prime is 121030099. The next prime is 121030141. The reversal of 121030113 is 311030121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 121030113 - 2¹⁷ = 120899041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121030153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20171683 + ... + 20171688.

It is an arithmetic number, because the mean of its divisors is an integer number (40343372).

Almost surely, 2^121030113 is an apocalyptic number.

It is an amenable number.

121030113 is a deficient number, since it is larger than the sum of its proper divisors (40343375).

121030113 is an equidigital number, since it uses as much as digits as its factorization.

121030113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40343374.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 121030113 is about 11001.3686875770. The cubic root of 121030113 is about 494.6497716464.

Adding to 121030113 its reverse (311030121), we get a palindrome (432060234).

The spelling of 121030113 in words is "one hundred twenty-one million, thirty thousand, one hundred thirteen".