1031130313013 has 4 divisors (see below), whose sum is σ = 1045255385868. Its totient is φ = 1017005240160.

The previous prime is 1031130313009. The next prime is 1031130313019. The reversal of 1031130313013 is 3103130311301.

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 893057130289 + 138073182724 = 945017^2 + 371582^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031130313013 - 2² = 1031130313009 is a prime.

It is a super-3 number, since 3×1031130313013³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031130313019) 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 in 3 ways as a sum of consecutive naturals, for example, 7062536318 + ... + 7062536463.

It is an arithmetic number, because the mean of its divisors is an integer number (261313846467).

Almost surely, 2^{1031130313013} is an apocalyptic number.

It is an amenable number.

1031130313013 is a deficient number, since it is larger than the sum of its proper divisors (14125072855).

1031130313013 is an equidigital number, since it uses as much as digits as its factorization.

1031130313013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14125072854.

The product of its (nonzero) digits is 243, while the sum is 20.

Adding to 1031130313013 its reverse (3103130311301), we get a palindrome (4134260624314).

The spelling of 1031130313013 in words is "one trillion, thirty-one billion, one hundred thirty million, three hundred thirteen thousand, thirteen".