203313032311 has 8 divisors (see below), whose sum is σ = 212157279360. Its totient is φ = 194469164472.

The previous prime is 203313032287. The next prime is 203313032317. The reversal of 203313032311 is 113230313302.

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

It is not a de Polignac number, because 203313032311 - 2²⁷ = 203178814583 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 (203313032317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1849200 + ... + 1956058.

It is an arithmetic number, because the mean of its divisors is an integer number (26519659920).

Almost surely, 2^203313032311 is an apocalyptic number.

203313032311 is a deficient number, since it is larger than the sum of its proper divisors (8844247049).

203313032311 is a wasteful number, since it uses less digits than its factorization.

203313032311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189605.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 203313032311 its reverse (113230313302), we get a palindrome (316543345613).

The spelling of 203313032311 in words is "two hundred three billion, three hundred thirteen million, thirty-two thousand, three hundred eleven".