11031001321 has 2 divisors, whose sum is σ = 11031001322. Its totient is φ = 11031001320.

The previous prime is 11031001309. The next prime is 11031001351. The reversal of 11031001321 is 12310013011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8089023721 + 2941977600 = 89939^2 + 54240^2 .

It is a cyclic number.

It is not a de Polignac number, because 11031001321 - 2³³ = 2441066729 is a prime.

It is not a weakly prime, because it can be changed into another prime (11031001301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5515500660 + 5515500661.

It is an arithmetic number, because the mean of its divisors is an integer number (5515500661).

Almost surely, 2^11031001321 is an apocalyptic number.

It is an amenable number.

11031001321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11031001321 is an equidigital number, since it uses as much as digits as its factorization.

11031001321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11031001321 its reverse (12310013011), we get a palindrome (23341014332).

The spelling of 11031001321 in words is "eleven billion, thirty-one million, one thousand, three hundred twenty-one".