121030011 has 8 divisors (see below), whose sum is σ = 179303760. Its totient is φ = 80686656.

The previous prime is 121030001. The next prime is 121030031. The reversal of 121030011 is 110030121.

It is a de Polignac number, because none of the positive numbers 2^k-121030011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 121029975 and 121030002.

It is not an unprimeable number, because it can be changed into a prime (121030001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2241270 + ... + 2241323.

It is an arithmetic number, because the mean of its divisors is an integer number (22412970).

Almost surely, 2^121030011 is an apocalyptic number.

121030011 is a deficient number, since it is larger than the sum of its proper divisors (58273749).

121030011 is an equidigital number, since it uses as much as digits as its factorization.

121030011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4482602 (or 4482596 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 121030011 is about 11001.3640517892. The cubic root of 121030011 is about 494.6496326885.

Adding to 121030011 its reverse (110030121), we get a palindrome (231060132).

The spelling of 121030011 in words is "one hundred twenty-one million, thirty thousand, eleven".