123110287 has 2 divisors, whose sum is σ = 123110288. Its totient is φ = 123110286.

The previous prime is 123110257. The next prime is 123110297. The reversal of 123110287 is 782011321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123110287 - 2¹⁵ = 123077519 is a prime.

It is a super-2 number, since 2×123110287² = 30312285530444738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123110257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61555143 + 61555144.

It is an arithmetic number, because the mean of its divisors is an integer number (61555144).

Almost surely, 2^123110287 is an apocalyptic number.

123110287 is a deficient number, since it is larger than the sum of its proper divisors (1).

123110287 is an equidigital number, since it uses as much as digits as its factorization.

123110287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 123110287 is about 11095.5075143051. The cubic root of 123110287 is about 497.4675779987.

The spelling of 123110287 in words is "one hundred twenty-three million, one hundred ten thousand, two hundred eighty-seven".