11311231313 has 8 divisors (see below), whose sum is σ = 11576707296. Its totient is φ = 11045865600.

The previous prime is 11311231301. The next prime is 11311231339. The reversal of 11311231313 is 31313211311.

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 11311231313 - 2¹² = 11311227217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311231213) 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, 202178 + ... + 251988.

It is an arithmetic number, because the mean of its divisors is an integer number (1447088412).

Almost surely, 2^11311231313 is an apocalyptic number.

It is an amenable number.

11311231313 is a deficient number, since it is larger than the sum of its proper divisors (265475983).

11311231313 is an equidigital number, since it uses as much as digits as its factorization.

11311231313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55135.

The product of its digits is 162, while the sum is 20.

Adding to 11311231313 its reverse (31313211311), we get a palindrome (42624442624).

The spelling of 11311231313 in words is "eleven billion, three hundred eleven million, two hundred thirty-one thousand, three hundred thirteen".