2120143430161 has 2 divisors, whose sum is σ = 2120143430162. Its totient is φ = 2120143430160.

The previous prime is 2120143430057. The next prime is 2120143430221. The reversal of 2120143430161 is 1610343410212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2014466423761 + 105677006400 = 1419319^2 + 325080^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120143430161 - 2⁷ = 2120143430033 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120143430761) 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, 1060071715080 + 1060071715081.

It is an arithmetic number, because the mean of its divisors is an integer number (1060071715081).

Almost surely, 2^{2120143430161} is an apocalyptic number.

It is an amenable number.

2120143430161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120143430161 is an equidigital number, since it uses as much as digits as its factorization.

2120143430161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 2120143430161 its reverse (1610343410212), we get a palindrome (3730486840373).

The spelling of 2120143430161 in words is "two trillion, one hundred twenty billion, one hundred forty-three million, four hundred thirty thousand, one hundred sixty-one".