123223679 has 2 divisors, whose sum is σ = 123223680. Its totient is φ = 123223678.

The previous prime is 123223669. The next prime is 123223693. The reversal of 123223679 is 976322321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123223679 - 2¹⁶ = 123158143 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123223609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61611839 + 61611840.

It is an arithmetic number, because the mean of its divisors is an integer number (61611840).

Almost surely, 2^123223679 is an apocalyptic number.

123223679 is a deficient number, since it is larger than the sum of its proper divisors (1).

123223679 is an equidigital number, since it uses as much as digits as its factorization.

123223679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 35.

The square root of 123223679 is about 11100.6161540700. The cubic root of 123223679 is about 497.6202636791.

The spelling of 123223679 in words is "one hundred twenty-three million, two hundred twenty-three thousand, six hundred seventy-nine".