131211122303 has 2 divisors, whose sum is σ = 131211122304. Its totient is φ = 131211122302.

The previous prime is 131211122299. The next prime is 131211122327. The reversal of 131211122303 is 303221112131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131211122303 - 2² = 131211122299 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131211122333) 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, 65605561151 + 65605561152.

It is an arithmetic number, because the mean of its divisors is an integer number (65605561152).

Almost surely, 2^131211122303 is an apocalyptic number.

131211122303 is a deficient number, since it is larger than the sum of its proper divisors (1).

131211122303 is an equidigital number, since it uses as much as digits as its factorization.

131211122303 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 20.

Adding to 131211122303 its reverse (303221112131), we get a palindrome (434432234434).

The spelling of 131211122303 in words is "one hundred thirty-one billion, two hundred eleven million, one hundred twenty-two thousand, three hundred three".