201323102131 has 2 divisors, whose sum is σ = 201323102132. Its totient is φ = 201323102130.

The previous prime is 201323102059. The next prime is 201323102143. The reversal of 201323102131 is 131201323102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201323102131 - 2³¹ = 199175618483 is a prime.

It is a super-2 number, since 2×201323102131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201323102099 and 201323102108.

It is not a weakly prime, because it can be changed into another prime (201323102161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100661551065 + 100661551066.

It is an arithmetic number, because the mean of its divisors is an integer number (100661551066).

Almost surely, 2^201323102131 is an apocalyptic number.

201323102131 is a deficient number, since it is larger than the sum of its proper divisors (1).

201323102131 is an equidigital number, since it uses as much as digits as its factorization.

201323102131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 201323102131 its reverse (131201323102), we get a palindrome (332524425233).

The spelling of 201323102131 in words is "two hundred one billion, three hundred twenty-three million, one hundred two thousand, one hundred thirty-one".