123433401 has 24 divisors (see below), whose sum is σ = 206177664. Its totient is φ = 65106720.

The previous prime is 123433393. The next prime is 123433417. The reversal of 123433401 is 104334321.

It is not a de Polignac number, because 123433401 - 2³ = 123433393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123433501) 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 in 23 ways as a sum of consecutive naturals, for example, 30385 + ... + 34206.

It is an arithmetic number, because the mean of its divisors is an integer number (8590736).

Almost surely, 2^123433401 is an apocalyptic number.

It is an amenable number.

123433401 is a deficient number, since it is larger than the sum of its proper divisors (82744263).

123433401 is a wasteful number, since it uses less digits than its factorization.

123433401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64621 (or 64614 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 123433401 is about 11110.0585507008. The cubic root of 123433401 is about 497.9024139039.

Adding to 123433401 its reverse (104334321), we get a palindrome (227767722).

The spelling of 123433401 in words is "one hundred twenty-three million, four hundred thirty-three thousand, four hundred one".