203201011 has 4 divisors (see below), whose sum is σ = 218831872. Its totient is φ = 187570152.

The previous prime is 203200997. The next prime is 203201023. The reversal of 203201011 is 110102302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203201011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203201041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7815411 + ... + 7815436.

It is an arithmetic number, because the mean of its divisors is an integer number (54707968).

Almost surely, 2^203201011 is an apocalyptic number.

203201011 is a deficient number, since it is larger than the sum of its proper divisors (15630861).

203201011 is a wasteful number, since it uses less digits than its factorization.

203201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15630860.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 203201011 is about 14254.8592066004. The cubic root of 203201011 is about 587.9069868068.

Adding to 203201011 its reverse (110102302), we get a palindrome (313303313).

The spelling of 203201011 in words is "two hundred three million, two hundred one thousand, eleven".