31224031340141 has 2 divisors, whose sum is σ = 31224031340142. Its totient is φ = 31224031340140.

The previous prime is 31224031340137. The next prime is 31224031340219. The reversal of 31224031340141 is 14104313042213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31123333011241 + 100698328900 = 5578829^2 + 317330^2 .

It is an emirp because it is prime and its reverse (14104313042213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31224031340141 - 2² = 31224031340137 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31224031340111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15612015670070 + 15612015670071.

It is an arithmetic number, because the mean of its divisors is an integer number (15612015670071).

Almost surely, 2^{31224031340141} is an apocalyptic number.

It is an amenable number.

31224031340141 is a deficient number, since it is larger than the sum of its proper divisors (1).

31224031340141 is an equidigital number, since it uses as much as digits as its factorization.

31224031340141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 31224031340141 its reverse (14104313042213), we get a palindrome (45328344382354).

The spelling of 31224031340141 in words is "thirty-one trillion, two hundred twenty-four billion, thirty-one million, three hundred forty thousand, one hundred forty-one".