11211102100123 has 2 divisors, whose sum is σ = 11211102100124. Its totient is φ = 11211102100122.

The previous prime is 11211102100031. The next prime is 11211102100141. The reversal of 11211102100123 is 32100120111211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11211102100123 - 2⁹ = 11211102099611 is a prime.

It is a super-2 number, since 2×11211102100123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11211102100097 and 11211102100106.

It is not a weakly prime, because it can be changed into another prime (11211102100183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605551050061 + 5605551050062.

It is an arithmetic number, because the mean of its divisors is an integer number (5605551050062).

Almost surely, 2^{11211102100123} is an apocalyptic number.

11211102100123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211102100123 is an equidigital number, since it uses as much as digits as its factorization.

11211102100123 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 16.

Adding to 11211102100123 its reverse (32100120111211), we get a palindrome (43311222211334).

The spelling of 11211102100123 in words is "eleven trillion, two hundred eleven billion, one hundred two million, one hundred thousand, one hundred twenty-three".