11011031001321 has 16 divisors (see below), whose sum is σ = 15811477508736. Its totient is φ = 6775690651776.

The previous prime is 11011031001287. The next prime is 11011031001331. The reversal of 11011031001321 is 12310013011011.

It is not a de Polignac number, because 11011031001321 - 2⁴³ = 2214937979113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11011031001321.

It is not an unprimeable number, because it can be changed into a prime (11011031001331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6026020 + ... + 7637733.

It is an arithmetic number, because the mean of its divisors is an integer number (988217344296).

Almost surely, 2^{11011031001321} is an apocalyptic number.

It is an amenable number.

11011031001321 is a deficient number, since it is larger than the sum of its proper divisors (4800446507415).

11011031001321 is a wasteful number, since it uses less digits than its factorization.

11011031001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13684432.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 11011031001321 its reverse (12310013011011), we get a palindrome (23321044012332).

The spelling of 11011031001321 in words is "eleven trillion, eleven billion, thirty-one million, one thousand, three hundred twenty-one".