31143325141 has 2 divisors, whose sum is σ = 31143325142. Its totient is φ = 31143325140.

The previous prime is 31143325061. The next prime is 31143325181. The reversal of 31143325141 is 14152334113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31091916241 + 51408900 = 176329^2 + 7170^2 .

It is a cyclic number.

It is not a de Polignac number, because 31143325141 - 2¹⁵ = 31143292373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31143325181) 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, 15571662570 + 15571662571.

It is an arithmetic number, because the mean of its divisors is an integer number (15571662571).

Almost surely, 2^31143325141 is an apocalyptic number.

It is an amenable number.

31143325141 is a deficient number, since it is larger than the sum of its proper divisors (1).

31143325141 is an equidigital number, since it uses as much as digits as its factorization.

31143325141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

Adding to 31143325141 its reverse (14152334113), we get a palindrome (45295659254).

The spelling of 31143325141 in words is "thirty-one billion, one hundred forty-three million, three hundred twenty-five thousand, one hundred forty-one".