203011112211 has 16 divisors (see below), whose sum is σ = 271004791200. Its totient is φ = 135179186688.

The previous prime is 203011112197. The next prime is 203011112273. The reversal of 203011112211 is 112211110302.

It is not a de Polignac number, because 203011112211 - 2¹¹ = 203011110163 is a prime.

It is a super-2 number, since 2×203011112211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203011111211) 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, 9579435 + ... + 9600603.

It is an arithmetic number, because the mean of its divisors is an integer number (16937799450).

Almost surely, 2^203011112211 is an apocalyptic number.

203011112211 is a deficient number, since it is larger than the sum of its proper divisors (67993678989).

203011112211 is a wasteful number, since it uses less digits than its factorization.

203011112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24838.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 203011112211 its reverse (112211110302), we get a palindrome (315222222513).

The spelling of 203011112211 in words is "two hundred three billion, eleven million, one hundred twelve thousand, two hundred eleven".