1031959139329 has 4 divisors (see below), whose sum is σ = 1037660571220. Its totient is φ = 1026257707440.

The previous prime is 1031959139317. The next prime is 1031959139333. The reversal of 1031959139329 is 9239319591301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 256388297104 + 775570842225 = 506348^2 + 880665^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031959139329 - 2¹¹ = 1031959137281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031959139329.

It is not an unprimeable number, because it can be changed into a prime (1031959139359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2850715674 + ... + 2850716035.

It is an arithmetic number, because the mean of its divisors is an integer number (259415142805).

Almost surely, 2^{1031959139329} is an apocalyptic number.

It is an amenable number.

1031959139329 is a deficient number, since it is larger than the sum of its proper divisors (5701431891).

1031959139329 is an equidigital number, since it uses as much as digits as its factorization.

1031959139329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5701431890.

The product of its (nonzero) digits is 1771470, while the sum is 55.

The spelling of 1031959139329 in words is "one trillion, thirty-one billion, nine hundred fifty-nine million, one hundred thirty-nine thousand, three hundred twenty-nine".