2100111121103 has 2 divisors, whose sum is σ = 2100111121104. Its totient is φ = 2100111121102.

The previous prime is 2100111121099. The next prime is 2100111121127. The reversal of 2100111121103 is 3011211110012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2100111121103 - 2² = 2100111121099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100111121193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050055560551 + 1050055560552.

It is an arithmetic number, because the mean of its divisors is an integer number (1050055560552).

Almost surely, 2^{2100111121103} is an apocalyptic number.

2100111121103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100111121103 is an equidigital number, since it uses as much as digits as its factorization.

2100111121103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 2100111121103 its reverse (3011211110012), we get a palindrome (5111322231115).

The spelling of 2100111121103 in words is "two trillion, one hundred billion, one hundred eleven million, one hundred twenty-one thousand, one hundred three".