1031320130129 has 2 divisors, whose sum is σ = 1031320130130. Its totient is φ = 1031320130128.

The previous prime is 1031320130117. The next prime is 1031320130287. The reversal of 1031320130129 is 9210310231301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 735409153600 + 295910976529 = 857560^2 + 543977^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031320130129 - 2³⁶ = 962600653393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1031320130098 and 1031320130107.

It is not a weakly prime, because it can be changed into another prime (1031320130429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515660065064 + 515660065065.

It is an arithmetic number, because the mean of its divisors is an integer number (515660065065).

Almost surely, 2^{1031320130129} is an apocalyptic number.

It is an amenable number.

1031320130129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031320130129 is an equidigital number, since it uses as much as digits as its factorization.

1031320130129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 1031320130129 in words is "one trillion, thirty-one billion, three hundred twenty million, one hundred thirty thousand, one hundred twenty-nine".