3111001121 has 2 divisors, whose sum is σ = 3111001122. Its totient is φ = 3111001120.

The previous prime is 3111001097. The next prime is 3111001123. The reversal of 3111001121 is 1211001113.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2327001121 + 784000000 = 48239^2 + 28000^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111001121 - 2¹⁰ = 3111000097 is a prime.

Together with 3111001123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3111001123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555500560 + 1555500561.

It is an arithmetic number, because the mean of its divisors is an integer number (1555500561).

Almost surely, 2^3111001121 is an apocalyptic number.

It is an amenable number.

3111001121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111001121 is an equidigital number, since it uses as much as digits as its factorization.

3111001121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 3111001121 is about 55776.3491186004. The cubic root of 3111001121 is about 1459.8225093862.

Adding to 3111001121 its reverse (1211001113), we get a palindrome (4322002234).

The spelling of 3111001121 in words is "three billion, one hundred eleven million, one thousand, one hundred twenty-one".