423203022403 has 4 divisors (see below), whose sum is σ = 483660597040. Its totient is φ = 362745447768.

The previous prime is 423203022391. The next prime is 423203022427. The reversal of 423203022403 is 304220302324.

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-423203022403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423203022433) 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, 30228787308 + ... + 30228787321.

It is an arithmetic number, because the mean of its divisors is an integer number (120915149260).

Almost surely, 2^423203022403 is an apocalyptic number.

423203022403 is a deficient number, since it is larger than the sum of its proper divisors (60457574637).

423203022403 is an equidigital number, since it uses as much as digits as its factorization.

423203022403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60457574636.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 423203022403 its reverse (304220302324), we get a palindrome (727423324727).

The spelling of 423203022403 in words is "four hundred twenty-three billion, two hundred three million, twenty-two thousand, four hundred three".