11312131011303 has 8 divisors (see below), whose sum is σ = 15085429811968. Its totient is φ = 7540126442424.

The previous prime is 11312131011281. The next prime is 11312131011371. The reversal of 11312131011303 is 30311013121311.

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

It is a de Polignac number, because none of the positive numbers 2^k-11312131011303 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 11312131011303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312131011373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323537551 + ... + 323572512.

It is an arithmetic number, because the mean of its divisors is an integer number (1885678726496).

Almost surely, 2^{11312131011303} is an apocalyptic number.

11312131011303 is a deficient number, since it is larger than the sum of its proper divisors (3773298800665).

11312131011303 is an equidigital number, since it uses as much as digits as its factorization.

11312131011303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647115893.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 11312131011303 its reverse (30311013121311), we get a palindrome (41623144132614).

The spelling of 11312131011303 in words is "eleven trillion, three hundred twelve billion, one hundred thirty-one million, eleven thousand, three hundred three".