123730771 has 2 divisors, whose sum is σ = 123730772. Its totient is φ = 123730770.

The previous prime is 123730751. The next prime is 123730787. The reversal of 123730771 is 177037321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123730771 - 2⁹ = 123730259 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123730721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61865385 + 61865386.

It is an arithmetic number, because the mean of its divisors is an integer number (61865386).

Almost surely, 2^123730771 is an apocalyptic number.

123730771 is a deficient number, since it is larger than the sum of its proper divisors (1).

123730771 is an equidigital number, since it uses as much as digits as its factorization.

123730771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6174, while the sum is 31.

The square root of 123730771 is about 11123.4334177897. The cubic root of 123730771 is about 498.3019343410.

The spelling of 123730771 in words is "one hundred twenty-three million, seven hundred thirty thousand, seven hundred seventy-one".