123450671 has 2 divisors, whose sum is σ = 123450672. Its totient is φ = 123450670.

The previous prime is 123450661. The next prime is 123450673. The reversal of 123450671 is 176054321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123450671 - 2²² = 119256367 is a prime.

Together with 123450673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123450673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61725335 + 61725336.

It is an arithmetic number, because the mean of its divisors is an integer number (61725336).

Almost surely, 2^123450671 is an apocalyptic number.

123450671 is a deficient number, since it is larger than the sum of its proper divisors (1).

123450671 is an equidigital number, since it uses as much as digits as its factorization.

123450671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 123450671 is about 11110.8357471434. The cubic root of 123450671 is about 497.9256339120.

The spelling of 123450671 in words is "one hundred twenty-three million, four hundred fifty thousand, six hundred seventy-one".