2142917723 has 2 divisors, whose sum is σ = 2142917724. Its totient is φ = 2142917722.

The previous prime is 2142917683. The next prime is 2142917729. The reversal of 2142917723 is 3277192412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2142917723 - 2¹² = 2142913627 is a prime.

It is not a weakly prime, because it can be changed into another prime (2142917729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071458861 + 1071458862.

It is an arithmetic number, because the mean of its divisors is an integer number (1071458862).

Almost surely, 2^2142917723 is an apocalyptic number.

2142917723 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142917723 is an equidigital number, since it uses as much as digits as its factorization.

2142917723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 38.

The square root of 2142917723 is about 46291.6593243319. The cubic root of 2142917723 is about 1289.2441384527.

The spelling of 2142917723 in words is "two billion, one hundred forty-two million, nine hundred seventeen thousand, seven hundred twenty-three".