123021967 has 2 divisors, whose sum is σ = 123021968. Its totient is φ = 123021966.

The previous prime is 123021953. The next prime is 123021971. The reversal of 123021967 is 769120321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123021967 - 2¹⁵ = 122989199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123021937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61510983 + 61510984.

It is an arithmetic number, because the mean of its divisors is an integer number (61510984).

Almost surely, 2^123021967 is an apocalyptic number.

123021967 is a deficient number, since it is larger than the sum of its proper divisors (1).

123021967 is an equidigital number, since it uses as much as digits as its factorization.

123021967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 123021967 is about 11091.5268110391. The cubic root of 123021967 is about 497.3485875432.

The spelling of 123021967 in words is "one hundred twenty-three million, twenty-one thousand, nine hundred sixty-seven".