11102123321 has 2 divisors, whose sum is σ = 11102123322. Its totient is φ = 11102123320.

The previous prime is 11102123297. The next prime is 11102123363. The reversal of 11102123321 is 12332120111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8031744400 + 3070378921 = 89620^2 + 55411^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11102123321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11102123321.

It is not a weakly prime, because it can be changed into another prime (11102123371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551061660 + 5551061661.

It is an arithmetic number, because the mean of its divisors is an integer number (5551061661).

Almost surely, 2^11102123321 is an apocalyptic number.

It is an amenable number.

11102123321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102123321 is an equidigital number, since it uses as much as digits as its factorization.

11102123321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11102123321 its reverse (12332120111), we get a palindrome (23434243432).

The spelling of 11102123321 in words is "eleven billion, one hundred two million, one hundred twenty-three thousand, three hundred twenty-one".