2141543349161 has 2 divisors, whose sum is σ = 2141543349162. Its totient is φ = 2141543349160.

The previous prime is 2141543349137. The next prime is 2141543349173. The reversal of 2141543349161 is 1619433451412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1491231745600 + 650311603561 = 1221160^2 + 806419^2 .

It is a cyclic number.

It is not a de Polignac number, because 2141543349161 - 2¹⁰ = 2141543348137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2141543319161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070771674580 + 1070771674581.

It is an arithmetic number, because the mean of its divisors is an integer number (1070771674581).

Almost surely, 2^{2141543349161} is an apocalyptic number.

It is an amenable number.

2141543349161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141543349161 is an equidigital number, since it uses as much as digits as its factorization.

2141543349161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 44.

The spelling of 2141543349161 in words is "two trillion, one hundred forty-one billion, five hundred forty-three million, three hundred forty-nine thousand, one hundred sixty-one".