131202123211 has 2 divisors, whose sum is σ = 131202123212. Its totient is φ = 131202123210.

The previous prime is 131202123187. The next prime is 131202123253. The reversal of 131202123211 is 112321202131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131202123211 - 2¹⁷ = 131201992139 is a prime.

It is not a weakly prime, because it can be changed into another prime (131202123011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65601061605 + 65601061606.

It is an arithmetic number, because the mean of its divisors is an integer number (65601061606).

Almost surely, 2^131202123211 is an apocalyptic number.

131202123211 is a deficient number, since it is larger than the sum of its proper divisors (1).

131202123211 is an equidigital number, since it uses as much as digits as its factorization.

131202123211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 131202123211 its reverse (112321202131), we get a palindrome (243523325342).

The spelling of 131202123211 in words is "one hundred thirty-one billion, two hundred two million, one hundred twenty-three thousand, two hundred eleven".