123433403 has 4 divisors (see below), whose sum is σ = 124525848. Its totient is φ = 122340960.

The previous prime is 123433393. The next prime is 123433417. The reversal of 123433403 is 304334321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123433403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123433423) 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, 546053 + ... + 546278.

It is an arithmetic number, because the mean of its divisors is an integer number (31131462).

Almost surely, 2^123433403 is an apocalyptic number.

123433403 is a deficient number, since it is larger than the sum of its proper divisors (1092445).

123433403 is a wasteful number, since it uses less digits than its factorization.

123433403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092444.

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

The square root of 123433403 is about 11110.0586407093. The cubic root of 123433403 is about 497.9024165931.

Adding to 123433403 its reverse (304334321), we get a palindrome (427767724).

The spelling of 123433403 in words is "one hundred twenty-three million, four hundred thirty-three thousand, four hundred three".