121130233211 has 4 divisors (see below), whose sum is σ = 130447943472. Its totient is φ = 111812522952.

The previous prime is 121130233193. The next prime is 121130233241. The reversal of 121130233211 is 112332031121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-121130233211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121130233241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4658855111 + ... + 4658855136.

It is an arithmetic number, because the mean of its divisors is an integer number (32611985868).

Almost surely, 2^121130233211 is an apocalyptic number.

121130233211 is a deficient number, since it is larger than the sum of its proper divisors (9317710261).

121130233211 is an equidigital number, since it uses as much as digits as its factorization.

121130233211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9317710260.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121130233211 its reverse (112332031121), we get a palindrome (233462264332).

The spelling of 121130233211 in words is "one hundred twenty-one billion, one hundred thirty million, two hundred thirty-three thousand, two hundred eleven".