201111231033 has 6 divisors (see below), whose sum is σ = 290494000394. Its totient is φ = 134074154016.

The previous prime is 201111231031. The next prime is 201111231043. The reversal of 201111231033 is 330132111102.

It can be written as a sum of positive squares in only one way, i.e., 200517675264 + 593555769 = 447792^2 + 24363^2 .

It is not a de Polignac number, because 201111231033 - 2¹ = 201111231031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201111230997 and 201111231015.

It is not an unprimeable number, because it can be changed into a prime (201111231031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11172846160 + ... + 11172846177.

Almost surely, 2^201111231033 is an apocalyptic number.

It is an amenable number.

201111231033 is a deficient number, since it is larger than the sum of its proper divisors (89382769361).

201111231033 is a wasteful number, since it uses less digits than its factorization.

201111231033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22345692343 (or 22345692340 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 201111231033 its reverse (330132111102), we get a palindrome (531243342135).

The spelling of 201111231033 in words is "two hundred one billion, one hundred eleven million, two hundred thirty-one thousand, thirty-three".