123230587 has 2 divisors, whose sum is σ = 123230588. Its totient is φ = 123230586.

The previous prime is 123230563. The next prime is 123230617. The reversal of 123230587 is 785032321.

It is a weak prime.

It is an emirp because it is prime and its reverse (785032321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123230587 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (123330587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615293 + 61615294.

It is an arithmetic number, because the mean of its divisors is an integer number (61615294).

Almost surely, 2^123230587 is an apocalyptic number.

123230587 is a deficient number, since it is larger than the sum of its proper divisors (1).

123230587 is an equidigital number, since it uses as much as digits as its factorization.

123230587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 123230587 is about 11100.9273036085. The cubic root of 123230587 is about 497.6295624778.

The spelling of 123230587 in words is "one hundred twenty-three million, two hundred thirty thousand, five hundred eighty-seven".