123188867 has 2 divisors, whose sum is σ = 123188868. Its totient is φ = 123188866.

The previous prime is 123188861. The next prime is 123188903. The reversal of 123188867 is 768881321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123188867 - 2⁶ = 123188803 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123188861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61594433 + 61594434.

It is an arithmetic number, because the mean of its divisors is an integer number (61594434).

Almost surely, 2^123188867 is an apocalyptic number.

123188867 is a deficient number, since it is larger than the sum of its proper divisors (1).

123188867 is an equidigital number, since it uses as much as digits as its factorization.

123188867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 44.

The square root of 123188867 is about 11099.0480222405. The cubic root of 123188867 is about 497.5733982597.

The spelling of 123188867 in words is "one hundred twenty-three million, one hundred eighty-eight thousand, eight hundred sixty-seven".