31310111141 has 2 divisors, whose sum is σ = 31310111142. Its totient is φ = 31310111140.

The previous prime is 31310111101. The next prime is 31310111179. The reversal of 31310111141 is 14111101313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25385730241 + 5924380900 = 159329^2 + 76970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31310111141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31310111101) 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, 15655055570 + 15655055571.

It is an arithmetic number, because the mean of its divisors is an integer number (15655055571).

Almost surely, 2^31310111141 is an apocalyptic number.

It is an amenable number.

31310111141 is a deficient number, since it is larger than the sum of its proper divisors (1).

31310111141 is an equidigital number, since it uses as much as digits as its factorization.

31310111141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 31310111141 its reverse (14111101313), we get a palindrome (45421212454).

The spelling of 31310111141 in words is "thirty-one billion, three hundred ten million, one hundred eleven thousand, one hundred forty-one".