123430433 has 4 divisors (see below), whose sum is σ = 141063360. Its totient is φ = 105797508.

The previous prime is 123430429. The next prime is 123430477. The reversal of 123430433 is 334034321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 334034321 = 1223 ⋅273127.

It is a cyclic number.

It is not a de Polignac number, because 123430433 - 2² = 123430429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123430399 and 123430408.

It is not an unprimeable number, because it can be changed into a prime (123430423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8816453 + ... + 8816466.

It is an arithmetic number, because the mean of its divisors is an integer number (35265840).

Almost surely, 2^123430433 is an apocalyptic number.

It is an amenable number.

123430433 is a deficient number, since it is larger than the sum of its proper divisors (17632927).

123430433 is an equidigital number, since it uses as much as digits as its factorization.

123430433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17632926.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 123430433 is about 11109.9249772444. The cubic root of 123430433 is about 497.8984231251.

Adding to 123430433 its reverse (334034321), we get a palindrome (457464754).

The spelling of 123430433 in words is "one hundred twenty-three million, four hundred thirty thousand, four hundred thirty-three".