201231032111 has 2 divisors, whose sum is σ = 201231032112. Its totient is φ = 201231032110.

The previous prime is 201231032071. The next prime is 201231032141. The reversal of 201231032111 is 111230132102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201231032111 - 2³⁴ = 184051162927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201231032111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201231032141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100615516055 + 100615516056.

It is an arithmetic number, because the mean of its divisors is an integer number (100615516056).

Almost surely, 2^201231032111 is an apocalyptic number.

201231032111 is a deficient number, since it is larger than the sum of its proper divisors (1).

201231032111 is an equidigital number, since it uses as much as digits as its factorization.

201231032111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201231032111 its reverse (111230132102), we get a palindrome (312461164213).

Subtracting from 201231032111 its reverse (111230132102), we obtain a palindrome (90000900009).

The spelling of 201231032111 in words is "two hundred one billion, two hundred thirty-one million, thirty-two thousand, one hundred eleven".