68101331 has 2 divisors, whose sum is σ = 68101332. Its totient is φ = 68101330.

The previous prime is 68101307. The next prime is 68101333. The reversal of 68101331 is 13310186.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68101331 is a prime.

It is a super-2 number, since 2×68101331² = 9275582567943122, which contains 22 as substring.

Together with 68101333, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 68101297 and 68101306.

It is not a weakly prime, because it can be changed into another prime (68101333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34050665 + 34050666.

It is an arithmetic number, because the mean of its divisors is an integer number (34050666).

Almost surely, 2^68101331 is an apocalyptic number.

68101331 is a deficient number, since it is larger than the sum of its proper divisors (1).

68101331 is an equidigital number, since it uses as much as digits as its factorization.

68101331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 68101331 is about 8252.3530583707. The cubic root of 68101331 is about 408.3681537801.

The spelling of 68101331 in words is "sixty-eight million, one hundred one thousand, three hundred thirty-one".