2113121027 has 2 divisors, whose sum is σ = 2113121028. Its totient is φ = 2113121026.

The previous prime is 2113120963. The next prime is 2113121033. The reversal of 2113121027 is 7201213112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2113121027 - 2⁶ = 2113120963 is a prime.

It is not a weakly prime, because it can be changed into another prime (2113121057) 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, 1056560513 + 1056560514.

It is an arithmetic number, because the mean of its divisors is an integer number (1056560514).

Almost surely, 2^2113121027 is an apocalyptic number.

2113121027 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113121027 is an equidigital number, since it uses as much as digits as its factorization.

2113121027 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 20.

The square root of 2113121027 is about 45968.6961638026. The cubic root of 2113121027 is about 1283.2406951664.

Adding to 2113121027 its reverse (7201213112), we get a palindrome (9314334139).

The spelling of 2113121027 in words is "two billion, one hundred thirteen million, one hundred twenty-one thousand, twenty-seven".