671410123 has 2 divisors, whose sum is σ = 671410124. Its totient is φ = 671410122.

The previous prime is 671410099. The next prime is 671410133. The reversal of 671410123 is 321014176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671410123 - 2¹³ = 671401931 is a prime.

It is not a weakly prime, because it can be changed into another prime (671410133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335705061 + 335705062.

It is an arithmetic number, because the mean of its divisors is an integer number (335705062).

Almost surely, 2^671410123 is an apocalyptic number.

671410123 is a deficient number, since it is larger than the sum of its proper divisors (1).

671410123 is an equidigital number, since it uses as much as digits as its factorization.

671410123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 671410123 is about 25911.5827961165. The cubic root of 671410123 is about 875.6474654904.

Adding to 671410123 its reverse (321014176), we get a palindrome (992424299).

The spelling of 671410123 in words is "six hundred seventy-one million, four hundred ten thousand, one hundred twenty-three".