11211002123 has 2 divisors, whose sum is σ = 11211002124. Its totient is φ = 11211002122.

The previous prime is 11211002113. The next prime is 11211002141. The reversal of 11211002123 is 32120011211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11211002123 - 2¹⁰ = 11211001099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11211002098 and 11211002107.

It is not a weakly prime, because it can be changed into another prime (11211002113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605501061 + 5605501062.

It is an arithmetic number, because the mean of its divisors is an integer number (5605501062).

Almost surely, 2^11211002123 is an apocalyptic number.

11211002123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211002123 is an equidigital number, since it uses as much as digits as its factorization.

11211002123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11211002123 its reverse (32120011211), we get a palindrome (43331013334).

The spelling of 11211002123 in words is "eleven billion, two hundred eleven million, two thousand, one hundred twenty-three".