11311020342321 has 32 divisors (see below), whose sum is σ = 17567226915840. Its totient is φ = 6339256158144.

The previous prime is 11311020342257. The next prime is 11311020342341. The reversal of 11311020342321 is 12324302011311.

It is not a de Polignac number, because 11311020342321 - 2⁶ = 11311020342257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11311020342291 and 11311020342300.

It is not an unprimeable number, because it can be changed into a prime (11311020342341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1376950 + ... + 4951568.

It is an arithmetic number, because the mean of its divisors is an integer number (548975841120).

Almost surely, 2^{11311020342321} is an apocalyptic number.

It is an amenable number.

11311020342321 is a deficient number, since it is larger than the sum of its proper divisors (6256206573519).

11311020342321 is a wasteful number, since it uses less digits than its factorization.

11311020342321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3577525.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 11311020342321 its reverse (12324302011311), we get a palindrome (23635322353632).

The spelling of 11311020342321 in words is "eleven trillion, three hundred eleven billion, twenty million, three hundred forty-two thousand, three hundred twenty-one".