2156110315241 has 2 divisors, whose sum is σ = 2156110315242. Its totient is φ = 2156110315240.

The previous prime is 2156110315223. The next prime is 2156110315291. The reversal of 2156110315241 is 1425130116512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2105122417216 + 50987898025 = 1450904^2 + 225805^2 .

It is a cyclic number.

It is not a de Polignac number, because 2156110315241 - 2²⁶ = 2156043206377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2156110315198 and 2156110315207.

It is not a weakly prime, because it can be changed into another prime (2156110315291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1078055157620 + 1078055157621.

It is an arithmetic number, because the mean of its divisors is an integer number (1078055157621).

Almost surely, 2^{2156110315241} is an apocalyptic number.

It is an amenable number.

2156110315241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2156110315241 is an equidigital number, since it uses as much as digits as its factorization.

2156110315241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 2156110315241 in words is "two trillion, one hundred fifty-six billion, one hundred ten million, three hundred fifteen thousand, two hundred forty-one".