203023103311 has 6 divisors (see below), whose sum is σ = 236169732480. Its totient is φ = 174019802796.

The previous prime is 203023103249. The next prime is 203023103333. The reversal of 203023103311 is 113301320302.

It is not a de Polignac number, because 203023103311 - 2¹⁵ = 203023070543 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 (203023103611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2071664271 + ... + 2071664368.

It is an arithmetic number, because the mean of its divisors is an integer number (39361622080).

Almost surely, 2^203023103311 is an apocalyptic number.

203023103311 is a deficient number, since it is larger than the sum of its proper divisors (33146629169).

203023103311 is an equidigital number, since it uses as much as digits as its factorization.

203023103311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143328653 (or 4143328646 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 203023103311 its reverse (113301320302), we get a palindrome (316324423613).

The spelling of 203023103311 in words is "two hundred three billion, twenty-three million, one hundred three thousand, three hundred eleven".