123087319 has 2 divisors, whose sum is σ = 123087320. Its totient is φ = 123087318.

The previous prime is 123087311. The next prime is 123087347. The reversal of 123087319 is 913780321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123087319 - 2³ = 123087311 is a prime.

It is a super-2 number, since 2×123087319² = 30300976197215522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123087311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61543659 + 61543660.

It is an arithmetic number, because the mean of its divisors is an integer number (61543660).

Almost surely, 2^123087319 is an apocalyptic number.

123087319 is a deficient number, since it is larger than the sum of its proper divisors (1).

123087319 is an equidigital number, since it uses as much as digits as its factorization.

123087319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 123087319 is about 11094.4724525324. The cubic root of 123087319 is about 497.4366394903.

The spelling of 123087319 in words is "one hundred twenty-three million, eighty-seven thousand, three hundred nineteen".