203234443011 has 16 divisors (see below), whose sum is σ = 301207125120. Its totient is φ = 135436051080.

The previous prime is 203234442991. The next prime is 203234443039. The reversal of 203234443011 is 110344432302.

203234443011 is a `hidden beast` number, since 203 + 2 + 3 + 4 + 443 + 0 + 11 = 666.

It is not a de Polignac number, because 203234443011 - 2⁵ = 203234442979 is a prime.

It is a super-3 number, since 3×203234443011³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (203234443081) 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 15 ways as a sum of consecutive naturals, for example, 1418665 + ... + 1555338.

It is an arithmetic number, because the mean of its divisors is an integer number (18825445320).

Almost surely, 2^203234443011 is an apocalyptic number.

203234443011 is a deficient number, since it is larger than the sum of its proper divisors (97972682109).

203234443011 is a wasteful number, since it uses less digits than its factorization.

203234443011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976543 (or 2976537 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 203234443011 its reverse (110344432302), we get a palindrome (313578875313).

The spelling of 203234443011 in words is "two hundred three billion, two hundred thirty-four million, four hundred forty-three thousand, eleven".