11021321323 has 16 divisors (see below), whose sum is σ = 11744248320. Its totient is φ = 10306816000.

The previous prime is 11021321303. The next prime is 11021321329. The reversal of 11021321323 is 32312312011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11021321323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11021321323.

It is not an unprimeable number, because it can be changed into a prime (11021321329) 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, 4223043 + ... + 4225651.

It is an arithmetic number, because the mean of its divisors is an integer number (734015520).

Almost surely, 2^11021321323 is an apocalyptic number.

11021321323 is a deficient number, since it is larger than the sum of its proper divisors (722926997).

11021321323 is a wasteful number, since it uses less digits than its factorization.

11021321323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4118.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11021321323 its reverse (32312312011), we get a palindrome (43333633334).

The spelling of 11021321323 in words is "eleven billion, twenty-one million, three hundred twenty-one thousand, three hundred twenty-three".