123110399 has 2 divisors, whose sum is σ = 123110400. Its totient is φ = 123110398.

The previous prime is 123110381. The next prime is 123110411. The reversal of 123110399 is 993011321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123110399 - 2¹² = 123106303 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123110369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61555199 + 61555200.

It is an arithmetic number, because the mean of its divisors is an integer number (61555200).

Almost surely, 2^123110399 is an apocalyptic number.

123110399 is a deficient number, since it is larger than the sum of its proper divisors (1).

123110399 is an equidigital number, since it uses as much as digits as its factorization.

123110399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 123110399 is about 11095.5125613917. The cubic root of 123110399 is about 497.4677288563.

The spelling of 123110399 in words is "one hundred twenty-three million, one hundred ten thousand, three hundred ninety-nine".