11311311303121 has 12 divisors (see below), whose sum is σ = 11723377266432. Its totient is φ = 10913275754864.

The previous prime is 11311311303107. The next prime is 11311311303151. The reversal of 11311311303121 is 12130311311311.

It is not a de Polignac number, because 11311311303121 - 2¹³ = 11311311294929 is a prime.

It is a super-2 number, since 2×11311311303121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11311311303092 and 11311311303101.

It is not an unprimeable number, because it can be changed into a prime (11311311303151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3769825 + ... + 6069118.

It is an arithmetic number, because the mean of its divisors is an integer number (976948105536).

Almost surely, 2^{11311311303121} is an apocalyptic number.

It is an amenable number.

11311311303121 is a deficient number, since it is larger than the sum of its proper divisors (412065963311).

11311311303121 is an equidigital number, since it uses as much as digits as its factorization.

11311311303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9840368 (or 9840339 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 11311311303121 its reverse (12130311311311), we get a palindrome (23441622614432).

The spelling of 11311311303121 in words is "eleven trillion, three hundred eleven billion, three hundred eleven million, three hundred three thousand, one hundred twenty-one".