1031321123141 has 2 divisors, whose sum is σ = 1031321123142. Its totient is φ = 1031321123140.

The previous prime is 1031321123117. The next prime is 1031321123167. The reversal of 1031321123141 is 1413211231301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 734241620641 + 297079502500 = 856879^2 + 545050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031321123141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031321123111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515660561570 + 515660561571.

It is an arithmetic number, because the mean of its divisors is an integer number (515660561571).

Almost surely, 2^{1031321123141} is an apocalyptic number.

It is an amenable number.

1031321123141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031321123141 is an equidigital number, since it uses as much as digits as its factorization.

1031321123141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 1031321123141 its reverse (1413211231301), we get a palindrome (2444532354442).

The spelling of 1031321123141 in words is "one trillion, thirty-one billion, three hundred twenty-one million, one hundred twenty-three thousand, one hundred forty-one".