1031211111313 has 8 divisors (see below), whose sum is σ = 1055177241768. Its totient is φ = 1007411992704.

The previous prime is 1031211111299. The next prime is 1031211111341. The reversal of 1031211111313 is 3131111121301.

It can be written as a sum of positive squares in 4 ways, for example, as 38364273424 + 992846837889 = 195868^2 + 996417^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1031211111313 - 2¹³ = 1031211103121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031211111373) 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 7 ways as a sum of consecutive naturals, for example, 41740470 + ... + 41765167.

It is an arithmetic number, because the mean of its divisors is an integer number (131897155221).

Almost surely, 2^{1031211111313} is an apocalyptic number.

It is an amenable number.

1031211111313 is a deficient number, since it is larger than the sum of its proper divisors (23966130455).

1031211111313 is an equidigital number, since it uses as much as digits as its factorization.

1031211111313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83505923.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 1031211111313 its reverse (3131111121301), we get a palindrome (4162322232614).

The spelling of 1031211111313 in words is "one trillion, thirty-one billion, two hundred eleven million, one hundred eleven thousand, three hundred thirteen".