2142021143 has 2 divisors, whose sum is σ = 2142021144. Its totient is φ = 2142021142.

The previous prime is 2142021139. The next prime is 2142021157. The reversal of 2142021143 is 3411202412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2142021143 - 2² = 2142021139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2142021443) 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, 1071010571 + 1071010572.

It is an arithmetic number, because the mean of its divisors is an integer number (1071010572).

Almost surely, 2^2142021143 is an apocalyptic number.

2142021143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142021143 is an equidigital number, since it uses as much as digits as its factorization.

2142021143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2142021143 is about 46281.9742772497. The cubic root of 2142021143 is about 1289.0643101525.

Adding to 2142021143 its reverse (3411202412), we get a palindrome (5553223555).

The spelling of 2142021143 in words is "two billion, one hundred forty-two million, twenty-one thousand, one hundred forty-three".