201123044231 has 2 divisors, whose sum is σ = 201123044232. Its totient is φ = 201123044230.

The previous prime is 201123044203. The next prime is 201123044249. The reversal of 201123044231 is 132440321102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201123044231 is a prime.

It is a super-2 number, since 2×201123044231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201123044197 and 201123044206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201123044131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561522115 + 100561522116.

It is an arithmetic number, because the mean of its divisors is an integer number (100561522116).

Almost surely, 2^201123044231 is an apocalyptic number.

201123044231 is a deficient number, since it is larger than the sum of its proper divisors (1).

201123044231 is an equidigital number, since it uses as much as digits as its factorization.

201123044231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 201123044231 its reverse (132440321102), we get a palindrome (333563365333).

The spelling of 201123044231 in words is "two hundred one billion, one hundred twenty-three million, forty-four thousand, two hundred thirty-one".