203231103311 has 8 divisors (see below), whose sum is σ = 215806012560. Its totient is φ = 190725098368.

The previous prime is 203231103301. The next prime is 203231103319. The reversal of 203231103311 is 113301132302.

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 203231103311 - 2¹⁰ = 203231102287 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 (203231103319) 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, 17219996 + ... + 17231793.

It is an arithmetic number, because the mean of its divisors is an integer number (26975751570).

Almost surely, 2^203231103311 is an apocalyptic number.

203231103311 is a deficient number, since it is larger than the sum of its proper divisors (12574909249).

203231103311 is a wasteful number, since it uses less digits than its factorization.

203231103311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34452153.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 203231103311 its reverse (113301132302), we get a palindrome (316532235613).

The spelling of 203231103311 in words is "two hundred three billion, two hundred thirty-one million, one hundred three thousand, three hundred eleven".