31321223062141 has 2 divisors, whose sum is σ = 31321223062142. Its totient is φ = 31321223062140.

The previous prime is 31321223062133. The next prime is 31321223062229. The reversal of 31321223062141 is 14126032212313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30908551726116 + 412671336025 = 5559546^2 + 642395^2 .

It is a cyclic number.

It is not a de Polignac number, because 31321223062141 - 2³ = 31321223062133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31321223069141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15660611531070 + 15660611531071.

It is an arithmetic number, because the mean of its divisors is an integer number (15660611531071).

Almost surely, 2^{31321223062141} is an apocalyptic number.

It is an amenable number.

31321223062141 is a deficient number, since it is larger than the sum of its proper divisors (1).

31321223062141 is an equidigital number, since it uses as much as digits as its factorization.

31321223062141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 31321223062141 its reverse (14126032212313), we get a palindrome (45447255274454).

The spelling of 31321223062141 in words is "thirty-one trillion, three hundred twenty-one billion, two hundred twenty-three million, sixty-two thousand, one hundred forty-one".