123409527271 has 2 divisors, whose sum is σ = 123409527272. Its totient is φ = 123409527270.

The previous prime is 123409527259. The next prime is 123409527299. The reversal of 123409527271 is 172725904321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123409527271 - 2⁵ = 123409527239 is a prime.

It is a super-2 number, since 2×123409527271² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123409527071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61704763635 + 61704763636.

It is an arithmetic number, because the mean of its divisors is an integer number (61704763636).

Almost surely, 2^123409527271 is an apocalyptic number.

123409527271 is a deficient number, since it is larger than the sum of its proper divisors (1).

123409527271 is an equidigital number, since it uses as much as digits as its factorization.

123409527271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 123409527271 in words is "one hundred twenty-three billion, four hundred nine million, five hundred twenty-seven thousand, two hundred seventy-one".