123401423 has 2 divisors, whose sum is σ = 123401424. Its totient is φ = 123401422.

The previous prime is 123401381. The next prime is 123401449. The reversal of 123401423 is 324104321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123401423 - 2⁸ = 123401167 is a prime.

It is a super-2 number, since 2×123401423² = 30455822396849858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123401395 and 123401404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123401323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61700711 + 61700712.

It is an arithmetic number, because the mean of its divisors is an integer number (61700712).

Almost surely, 2^123401423 is an apocalyptic number.

123401423 is a deficient number, since it is larger than the sum of its proper divisors (1).

123401423 is an equidigital number, since it uses as much as digits as its factorization.

123401423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 123401423 is about 11108.6193111475. The cubic root of 123401423 is about 497.8594128512.

Adding to 123401423 its reverse (324104321), we get a palindrome (447505744).

The spelling of 123401423 in words is "one hundred twenty-three million, four hundred one thousand, four hundred twenty-three".