3111551141 has 2 divisors, whose sum is σ = 3111551142. Its totient is φ = 3111551140.

The previous prime is 3111551111. The next prime is 3111551231. The reversal of 3111551141 is 1411551113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2299586116 + 811965025 = 47954^2 + 28495^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111551141 - 2¹⁴ = 3111534757 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3111551111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555775570 + 1555775571.

It is an arithmetic number, because the mean of its divisors is an integer number (1555775571).

Almost surely, 2^3111551141 is an apocalyptic number.

It is an amenable number.

3111551141 is a deficient number, since it is larger than the sum of its proper divisors (1).

3111551141 is an equidigital number, since it uses as much as digits as its factorization.

3111551141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 300, while the sum is 23.

The square root of 3111551141 is about 55781.2794851463. The cubic root of 3111551141 is about 1459.9085357414.

The spelling of 3111551141 in words is "three billion, one hundred eleven million, five hundred fifty-one thousand, one hundred forty-one".