1131012112313 has 4 divisors (see below), whose sum is σ = 1131025390308. Its totient is φ = 1130998834320.

The previous prime is 1131012112303. The next prime is 1131012112327. The reversal of 1131012112313 is 3132112101311.

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 1075113913129 + 55898199184 = 1036877^2 + 236428^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131012112313 - 2¹² = 1131012108217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131012112303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6510398 + ... + 6681863.

It is an arithmetic number, because the mean of its divisors is an integer number (282756347577).

Almost surely, 2^{1131012112313} is an apocalyptic number.

It is an amenable number.

1131012112313 is a deficient number, since it is larger than the sum of its proper divisors (13277995).

1131012112313 is an equidigital number, since it uses as much as digits as its factorization.

1131012112313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13277994.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1131012112313 its reverse (3132112101311), we get a palindrome (4263124213624).

The spelling of 1131012112313 in words is "one trillion, one hundred thirty-one billion, twelve million, one hundred twelve thousand, three hundred thirteen".