1131144244313 has 4 divisors (see below), whose sum is σ = 1131149569188. Its totient is φ = 1131138919440.

The previous prime is 1131144244309. The next prime is 1131144244319. The reversal of 1131144244313 is 3134424411311.

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 545985032464 + 585159211849 = 738908^2 + 764957^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131144244313 - 2² = 1131144244309 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 1131144244313.

It is not an unprimeable number, because it can be changed into a prime (1131144244319) 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, 2329958 + ... + 2773263.

It is an arithmetic number, because the mean of its divisors is an integer number (282787392297).

Almost surely, 2^{1131144244313} is an apocalyptic number.

It is an amenable number.

1131144244313 is a deficient number, since it is larger than the sum of its proper divisors (5324875).

1131144244313 is an equidigital number, since it uses as much as digits as its factorization.

1131144244313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5324874.

The product of its digits is 13824, while the sum is 32.

Adding to 1131144244313 its reverse (3134424411311), we get a palindrome (4265568655624).

The spelling of 1131144244313 in words is "one trillion, one hundred thirty-one billion, one hundred forty-four million, two hundred forty-four thousand, three hundred thirteen".