2151716023 has 2 divisors, whose sum is σ = 2151716024. Its totient is φ = 2151716022.

The previous prime is 2151715991. The next prime is 2151716051. The reversal of 2151716023 is 3206171512.

It is a happy number.

It is an a-pointer prime, because the next prime (2151716051) can be obtained adding 2151716023 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2151716023 - 2⁵ = 2151715991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2151715982 and 2151716000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2151716923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075858011 + 1075858012.

It is an arithmetic number, because the mean of its divisors is an integer number (1075858012).

Almost surely, 2^2151716023 is an apocalyptic number.

2151716023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151716023 is an equidigital number, since it uses as much as digits as its factorization.

2151716023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 2151716023 is about 46386.5931385352. The cubic root of 2151716023 is about 1291.0061703174.

Adding to 2151716023 its reverse (3206171512), we get a palindrome (5357887535).

The spelling of 2151716023 in words is "two billion, one hundred fifty-one million, seven hundred sixteen thousand, twenty-three".