31310423141161 has 2 divisors, whose sum is σ = 31310423141162. Its totient is φ = 31310423141160.

The previous prime is 31310423141093. The next prime is 31310423141203. The reversal of 31310423141161 is 16114132401313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18812388155625 + 12498034985536 = 4337325^2 + 3535256^2 .

It is a cyclic number.

It is not a de Polignac number, because 31310423141161 - 2¹⁹ = 31310422616873 is a prime.

It is not a weakly prime, because it can be changed into another prime (31310423171161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655211570580 + 15655211570581.

It is an arithmetic number, because the mean of its divisors is an integer number (15655211570581).

Almost surely, 2^{31310423141161} is an apocalyptic number.

It is an amenable number.

31310423141161 is a deficient number, since it is larger than the sum of its proper divisors (1).

31310423141161 is an equidigital number, since it uses as much as digits as its factorization.

31310423141161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

Adding to 31310423141161 its reverse (16114132401313), we get a palindrome (47424555542474).

The spelling of 31310423141161 in words is "thirty-one trillion, three hundred ten billion, four hundred twenty-three million, one hundred forty-one thousand, one hundred sixty-one".