131321201233 has 2 divisors, whose sum is σ = 131321201234. Its totient is φ = 131321201232.

The previous prime is 131321201203. The next prime is 131321201237. The reversal of 131321201233 is 332102123131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78718402624 + 52602798609 = 280568^2 + 229353^2 .

It is a cyclic number.

It is not a de Polignac number, because 131321201233 - 2²⁹ = 130784330321 is a prime.

It is not a weakly prime, because it can be changed into another prime (131321201237) 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, 65660600616 + 65660600617.

It is an arithmetic number, because the mean of its divisors is an integer number (65660600617).

Almost surely, 2^131321201233 is an apocalyptic number.

It is an amenable number.

131321201233 is a deficient number, since it is larger than the sum of its proper divisors (1).

131321201233 is an equidigital number, since it uses as much as digits as its factorization.

131321201233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131321201233 its reverse (332102123131), we get a palindrome (463423324364).

The spelling of 131321201233 in words is "one hundred thirty-one billion, three hundred twenty-one million, two hundred one thousand, two hundred thirty-three".