2123882291 has 2 divisors, whose sum is σ = 2123882292. Its totient is φ = 2123882290.

The previous prime is 2123882281. The next prime is 2123882311. The reversal of 2123882291 is 1922883212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2123882291 - 2⁶ = 2123882227 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123882281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061941145 + 1061941146.

It is an arithmetic number, because the mean of its divisors is an integer number (1061941146).

Almost surely, 2^2123882291 is an apocalyptic number.

2123882291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123882291 is an equidigital number, since it uses as much as digits as its factorization.

2123882291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 38.

The square root of 2123882291 is about 46085.5974356414. The cubic root of 2123882291 is about 1285.4153483799.

The spelling of 2123882291 in words is "two billion, one hundred twenty-three million, eight hundred eighty-two thousand, two hundred ninety-one".