203122204393 has 8 divisors (see below), whose sum is σ = 215546040000. Its totient is φ = 190997738448.

The previous prime is 203122204381. The next prime is 203122204421. The reversal of 203122204393 is 393402221302.

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 203122204393 - 2¹³ = 203122196201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203122204793) 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, 74841018 + ... + 74843731.

It is an arithmetic number, because the mean of its divisors is an integer number (26943255000).

Almost surely, 2^203122204393 is an apocalyptic number.

203122204393 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

203122204393 is a deficient number, since it is larger than the sum of its proper divisors (12423835607).

203122204393 is a wasteful number, since it uses less digits than its factorization.

203122204393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149684831.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 203122204393 its reverse (393402221302), we get a palindrome (596524425695).

The spelling of 203122204393 in words is "two hundred three billion, one hundred twenty-two million, two hundred four thousand, three hundred ninety-three".