101720075239 has 2 divisors, whose sum is σ = 101720075240. Its totient is φ = 101720075238.

The previous prime is 101720075221. The next prime is 101720075299. The reversal of 101720075239 is 932570027101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101720075239 - 2²⁷ = 101585857511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101720075198 and 101720075207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101720075209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50860037619 + 50860037620.

It is an arithmetic number, because the mean of its divisors is an integer number (50860037620).

Almost surely, 2^101720075239 is an apocalyptic number.

101720075239 is a deficient number, since it is larger than the sum of its proper divisors (1).

101720075239 is an equidigital number, since it uses as much as digits as its factorization.

101720075239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 37.

The spelling of 101720075239 in words is "one hundred one billion, seven hundred twenty million, seventy-five thousand, two hundred thirty-nine".