201303423 has 24 divisors (see below), whose sum is σ = 306640880. Its totient is φ = 126904320.

The previous prime is 201303419. The next prime is 201303433. The reversal of 201303423 is 324303102.

It is not a de Polignac number, because 201303423 - 2² = 201303419 is a prime.

It is a super-2 number, since 2×201303423² = 81046136223033858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201303396 and 201303405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201303433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174015 + ... + 175167.

Almost surely, 2^201303423 is an apocalyptic number.

201303423 is a deficient number, since it is larger than the sum of its proper divisors (105337457).

201303423 is a wasteful number, since it uses less digits than its factorization.

201303423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199 (or 2196 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 201303423 is about 14188.1437475097. The cubic root of 201303423 is about 586.0712084449.

Adding to 201303423 its reverse (324303102), we get a palindrome (525606525).

The spelling of 201303423 in words is "two hundred one million, three hundred three thousand, four hundred twenty-three".