3120123211 has 2 divisors, whose sum is σ = 3120123212. Its totient is φ = 3120123210.

The previous prime is 3120123179. The next prime is 3120123217. The reversal of 3120123211 is 1123210213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3120123211 - 2⁵ = 3120123179 is a prime.

It is not a weakly prime, because it can be changed into another prime (3120123217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560061605 + 1560061606.

It is an arithmetic number, because the mean of its divisors is an integer number (1560061606).

Almost surely, 2^3120123211 is an apocalyptic number.

3120123211 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120123211 is an equidigital number, since it uses as much as digits as its factorization.

3120123211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3120123211 is about 55858.0630795591. The cubic root of 3120123211 is about 1461.2479495435.

Adding to 3120123211 its reverse (1123210213), we get a palindrome (4243333424).

The spelling of 3120123211 in words is "three billion, one hundred twenty million, one hundred twenty-three thousand, two hundred eleven".