9144931231129 has 2 divisors, whose sum is σ = 9144931231130. Its totient is φ = 9144931231128.

The previous prime is 9144931231109. The next prime is 9144931231187. The reversal of 9144931231129 is 9211321394419.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8825937839104 + 318993392025 = 2970848^2 + 564795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9144931231129 is a prime.

It is a super-2 number, since 2×9144931231129² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9144931231109) 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, 4572465615564 + 4572465615565.

It is an arithmetic number, because the mean of its divisors is an integer number (4572465615565).

Almost surely, 2^{9144931231129} is an apocalyptic number.

It is an amenable number.

9144931231129 is a deficient number, since it is larger than the sum of its proper divisors (1).

9144931231129 is an equidigital number, since it uses as much as digits as its factorization.

9144931231129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 49.

The spelling of 9144931231129 in words is "nine trillion, one hundred forty-four billion, nine hundred thirty-one million, two hundred thirty-one thousand, one hundred twenty-nine".