1712721110231 has 2 divisors, whose sum is σ = 1712721110232. Its totient is φ = 1712721110230.

The previous prime is 1712721110209. The next prime is 1712721110257. The reversal of 1712721110231 is 1320111272171.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1712721110231 - 2⁶ = 1712721110167 is a prime.

It is a super-2 number, since 2×1712721110231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1712721110194 and 1712721110203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1712721116231) 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, 856360555115 + 856360555116.

It is an arithmetic number, because the mean of its divisors is an integer number (856360555116).

Almost surely, 2^{1712721110231} is an apocalyptic number.

1712721110231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1712721110231 is an equidigital number, since it uses as much as digits as its factorization.

1712721110231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 29.

The spelling of 1712721110231 in words is "one trillion, seven hundred twelve billion, seven hundred twenty-one million, one hundred ten thousand, two hundred thirty-one".