123040319 has 2 divisors, whose sum is σ = 123040320. Its totient is φ = 123040318.

The previous prime is 123040297. The next prime is 123040327. The reversal of 123040319 is 913040321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123040319 is a prime.

It is a super-2 number, since 2×123040319² = 30277840199243522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 123040294 and 123040303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123045319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61520159 + 61520160.

It is an arithmetic number, because the mean of its divisors is an integer number (61520160).

Almost surely, 2^123040319 is an apocalyptic number.

123040319 is a deficient number, since it is larger than the sum of its proper divisors (1).

123040319 is an equidigital number, since it uses as much as digits as its factorization.

123040319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 123040319 is about 11092.3540783731. The cubic root of 123040319 is about 497.3733172389.

The spelling of 123040319 in words is "one hundred twenty-three million, forty thousand, three hundred nineteen".