203102011 has 12 divisors (see below), whose sum is σ = 238606560. Its totient is φ = 172359600.

The previous prime is 203101999. The next prime is 203102021. The reversal of 203102011 is 110201302.

It is not a de Polignac number, because 203102011 - 2¹³ = 203093819 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 (203102021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15571 + ... + 25468.

It is an arithmetic number, because the mean of its divisors is an integer number (19883880).

Almost surely, 2^203102011 is an apocalyptic number.

203102011 is a deficient number, since it is larger than the sum of its proper divisors (35504549).

203102011 is a wasteful number, since it uses less digits than its factorization.

203102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41154 (or 41147 counting only the distinct ones).

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

The square root of 203102011 is about 14251.3862834463. The cubic root of 203102011 is about 587.8114947517.

Adding to 203102011 its reverse (110201302), we get a palindrome (313303313).

The spelling of 203102011 in words is "two hundred three million, one hundred two thousand, eleven".