671216023 has 2 divisors, whose sum is σ = 671216024. Its totient is φ = 671216022.

The previous prime is 671215973. The next prime is 671216027. The reversal of 671216023 is 320612176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671216023 - 2¹⁷ = 671084951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 671215982 and 671216000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671216027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335608011 + 335608012.

It is an arithmetic number, because the mean of its divisors is an integer number (335608012).

Almost surely, 2^671216023 is an apocalyptic number.

671216023 is a deficient number, since it is larger than the sum of its proper divisors (1).

671216023 is an equidigital number, since it uses as much as digits as its factorization.

671216023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 671216023 is about 25907.8370961375. The cubic root of 671216023 is about 875.5630761590.

Adding to 671216023 its reverse (320612176), we get a palindrome (991828199).

The spelling of 671216023 in words is "six hundred seventy-one million, two hundred sixteen thousand, twenty-three".