11311030220321 has 16 divisors (see below), whose sum is σ = 12698544058368. Its totient is φ = 10004105016000.

The previous prime is 11311030220309. The next prime is 11311030220333. The reversal of 11311030220321 is 12302203011311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11311030220309) and next prime (11311030220333).

It is a cyclic number.

It is not a de Polignac number, because 11311030220321 - 2¹⁴ = 11311030203937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11311030220293 and 11311030220302.

It is not an unprimeable number, because it can be changed into a prime (11311030220221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138905201 + ... + 138986606.

It is an arithmetic number, because the mean of its divisors is an integer number (793659003648).

Almost surely, 2^{11311030220321} is an apocalyptic number.

It is an amenable number.

11311030220321 is a deficient number, since it is larger than the sum of its proper divisors (1387513838047).

11311030220321 is a wasteful number, since it uses less digits than its factorization.

11311030220321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277891952.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11311030220321 its reverse (12302203011311), we get a palindrome (23613233231632).

The spelling of 11311030220321 in words is "eleven trillion, three hundred eleven billion, thirty million, two hundred twenty thousand, three hundred twenty-one".