2142204131 has 2 divisors, whose sum is σ = 2142204132. Its totient is φ = 2142204130.

The previous prime is 2142204109. The next prime is 2142204139. The reversal of 2142204131 is 1314022412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2142204131 is a prime.

It is a super-2 number, since 2×2142204131² = 9178077077746930322, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2142204139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071102065 + 1071102066.

It is an arithmetic number, because the mean of its divisors is an integer number (1071102066).

Almost surely, 2^2142204131 is an apocalyptic number.

2142204131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142204131 is an equidigital number, since it uses as much as digits as its factorization.

2142204131 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 2142204131 is about 46283.9511169909. The cubic root of 2142204131 is about 1289.1010163858.

Adding to 2142204131 its reverse (1314022412), we get a palindrome (3456226543).

The spelling of 2142204131 in words is "two billion, one hundred forty-two million, two hundred four thousand, one hundred thirty-one".