2042110181 has 2 divisors, whose sum is σ = 2042110182. Its totient is φ = 2042110180.

The previous prime is 2042110153. The next prime is 2042110229. The reversal of 2042110181 is 1810112402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1620465025 + 421645156 = 40255^2 + 20534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2042110181 is a prime.

It is a super-2 number, since 2×2042110181² = 8340427982687705522, which contains 22 as substring.

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 (2042110121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021055090 + 1021055091.

It is an arithmetic number, because the mean of its divisors is an integer number (1021055091).

Almost surely, 2^2042110181 is an apocalyptic number.

It is an amenable number.

2042110181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042110181 is an equidigital number, since it uses as much as digits as its factorization.

2042110181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 2042110181 is about 45189.7132210418. The cubic root of 2042110181 is about 1268.7022892394.

Adding to 2042110181 its reverse (1810112402), we get a palindrome (3852222583).

The spelling of 2042110181 in words is "two billion, forty-two million, one hundred ten thousand, one hundred eighty-one".