423402442303 has 4 divisors (see below), whose sum is σ = 424622622600. Its totient is φ = 422182262008.

The previous prime is 423402442301. The next prime is 423402442313. The reversal of 423402442303 is 303244204324.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 423402442303 - 2¹ = 423402442301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423402442301) 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, 610089628 + ... + 610090321.

It is an arithmetic number, because the mean of its divisors is an integer number (106155655650).

Almost surely, 2^423402442303 is an apocalyptic number.

423402442303 is a deficient number, since it is larger than the sum of its proper divisors (1220180297).

423402442303 is a wasteful number, since it uses less digits than its factorization.

423402442303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220180296.

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 423402442303 its reverse (303244204324), we get a palindrome (726646646627).

The spelling of 423402442303 in words is "four hundred twenty-three billion, four hundred two million, four hundred forty-two thousand, three hundred three".