100120111103 has 2 divisors, whose sum is σ = 100120111104. Its totient is φ = 100120111102.

The previous prime is 100120111019. The next prime is 100120111213. The reversal of 100120111103 is 301111021001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100120111103 - 2¹⁴ = 100120094719 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100120111303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060055551 + 50060055552.

It is an arithmetic number, because the mean of its divisors is an integer number (50060055552).

Almost surely, 2^100120111103 is an apocalyptic number.

100120111103 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120111103 is an equidigital number, since it uses as much as digits as its factorization.

100120111103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 100120111103 its reverse (301111021001), we get a palindrome (401231132104).

The spelling of 100120111103 in words is "one hundred billion, one hundred twenty million, one hundred eleven thousand, one hundred three".