203240201423 has 8 divisors (see below), whose sum is σ = 232417291392. Its totient is φ = 174098805336.

The previous prime is 203240201419. The next prime is 203240201467. The reversal of 203240201423 is 324102042302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203240201423 - 2² = 203240201419 is a prime.

It is a super-2 number, since 2×203240201423² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203240201323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8911265 + ... + 8934042.

It is an arithmetic number, because the mean of its divisors is an integer number (29052161424).

Almost surely, 2^203240201423 is an apocalyptic number.

203240201423 is a deficient number, since it is larger than the sum of its proper divisors (29177089969).

203240201423 is a wasteful number, since it uses less digits than its factorization.

203240201423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17846941.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 203240201423 its reverse (324102042302), we get a palindrome (527342243725).

The spelling of 203240201423 in words is "two hundred three billion, two hundred forty million, two hundred one thousand, four hundred twenty-three".