123104431 has 2 divisors, whose sum is σ = 123104432. Its totient is φ = 123104430.

The previous prime is 123104413. The next prime is 123104447. The reversal of 123104431 is 134401321.

Together with previous prime (123104413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123104431 - 2²³ = 114715823 is a prime.

It is a super-2 number, since 2×123104431² = 30309401863667522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123104399 and 123104408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123104231) 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, 61552215 + 61552216.

It is an arithmetic number, because the mean of its divisors is an integer number (61552216).

Almost surely, 2^123104431 is an apocalyptic number.

123104431 is a deficient number, since it is larger than the sum of its proper divisors (1).

123104431 is an equidigital number, since it uses as much as digits as its factorization.

123104431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 123104431 is about 11095.2436205790. The cubic root of 123104431 is about 497.4596901761.

Adding to 123104431 its reverse (134401321), we get a palindrome (257505752).

The spelling of 123104431 in words is "one hundred twenty-three million, one hundred four thousand, four hundred thirty-one".