68110121 has 2 divisors, whose sum is σ = 68110122. Its totient is φ = 68110120.

The previous prime is 68110111. The next prime is 68110127. The reversal of 68110121 is 12101186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67897600 + 212521 = 8240^2 + 461^2 .

It is a cyclic number.

It is not a de Polignac number, because 68110121 - 2¹⁸ = 67847977 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68110093 and 68110102.

It is not a weakly prime, because it can be changed into another prime (68110127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34055060 + 34055061.

It is an arithmetic number, because the mean of its divisors is an integer number (34055061).

Almost surely, 2^68110121 is an apocalyptic number.

It is an amenable number.

68110121 is a deficient number, since it is larger than the sum of its proper divisors (1).

68110121 is an equidigital number, since it uses as much as digits as its factorization.

68110121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 68110121 is about 8252.8856165586. The cubic root of 68110121 is about 408.3857227057.

The spelling of 68110121 in words is "sixty-eight million, one hundred ten thousand, one hundred twenty-one".