68722312231 has 2 divisors, whose sum is σ = 68722312232. Its totient is φ = 68722312230.

The previous prime is 68722312213. The next prime is 68722312249. The reversal of 68722312231 is 13221322786.

Together with previous prime (68722312213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (68722312213) and next prime (68722312249).

It is a cyclic number.

It is not a de Polignac number, because 68722312231 - 2⁷ = 68722312103 is a prime.

It is a super-2 number, since 2×68722312231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68722312291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34361156115 + 34361156116.

It is an arithmetic number, because the mean of its divisors is an integer number (34361156116).

Almost surely, 2^68722312231 is an apocalyptic number.

68722312231 is a deficient number, since it is larger than the sum of its proper divisors (1).

68722312231 is an equidigital number, since it uses as much as digits as its factorization.

68722312231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The spelling of 68722312231 in words is "sixty-eight billion, seven hundred twenty-two million, three hundred twelve thousand, two hundred thirty-one".