203111000234 has 32 divisors (see below), whose sum is σ = 310713796800. Its totient is φ = 99550030720.

The previous prime is 203111000231. The next prime is 203111000243. The reversal of 203111000234 is 432000111302.

It is not an unprimeable number, because it can be changed into a prime (203111000231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85303724 + ... + 85306104.

It is an arithmetic number, because the mean of its divisors is an integer number (9709806150).

Almost surely, 2^203111000234 is an apocalyptic number.

203111000234 is a deficient number, since it is larger than the sum of its proper divisors (107602796566).

203111000234 is a wasteful number, since it uses less digits than its factorization.

203111000234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4198.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 203111000234 its reverse (432000111302), we get a palindrome (635111111536).

The spelling of 203111000234 in words is "two hundred three billion, one hundred eleven million, two hundred thirty-four", and thus it is an aban number.