2101312127 has 2 divisors, whose sum is σ = 2101312128. Its totient is φ = 2101312126.

The previous prime is 2101312111. The next prime is 2101312133. The reversal of 2101312127 is 7212131012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101312127 - 2⁴ = 2101312111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2101312099 and 2101312108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101312027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050656063 + 1050656064.

It is an arithmetic number, because the mean of its divisors is an integer number (1050656064).

Almost surely, 2^2101312127 is an apocalyptic number.

2101312127 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101312127 is an equidigital number, since it uses as much as digits as its factorization.

2101312127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 2101312127 is about 45840.0711932257. The cubic root of 2101312127 is about 1280.8458209653.

Adding to 2101312127 its reverse (7212131012), we get a palindrome (9313443139).

The spelling of 2101312127 in words is "two billion, one hundred one million, three hundred twelve thousand, one hundred twenty-seven".