11203201331111 has 2 divisors, whose sum is σ = 11203201331112. Its totient is φ = 11203201331110.

The previous prime is 11203201331107. The next prime is 11203201331129. The reversal of 11203201331111 is 11113310230211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11203201331111 - 2² = 11203201331107 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11203201331141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601600665555 + 5601600665556.

It is an arithmetic number, because the mean of its divisors is an integer number (5601600665556).

Almost surely, 2^{11203201331111} is an apocalyptic number.

11203201331111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11203201331111 is an equidigital number, since it uses as much as digits as its factorization.

11203201331111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 11203201331111 its reverse (11113310230211), we get a palindrome (22316511561322).

The spelling of 11203201331111 in words is "eleven trillion, two hundred three billion, two hundred one million, three hundred thirty-one thousand, one hundred eleven".