2101123207 has 2 divisors, whose sum is σ = 2101123208. Its totient is φ = 2101123206.

The previous prime is 2101123133. The next prime is 2101123231. The reversal of 2101123207 is 7023211012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101123207 - 2¹⁹ = 2100598919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101123237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050561603 + 1050561604.

It is an arithmetic number, because the mean of its divisors is an integer number (1050561604).

Almost surely, 2^2101123207 is an apocalyptic number.

2101123207 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101123207 is an equidigital number, since it uses as much as digits as its factorization.

2101123207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2101123207 is about 45838.0105043838. The cubic root of 2101123207 is about 1280.8074346888.

Adding to 2101123207 its reverse (7023211012), we get a palindrome (9124334219).

The spelling of 2101123207 in words is "two billion, one hundred one million, one hundred twenty-three thousand, two hundred seven".