127205452831231 has 4 divisors (see below), whose sum is σ = 127227002126112. Its totient is φ = 127183903536352.

The previous prime is 127205452831207. The next prime is 127205452831273. The reversal of 127205452831231 is 132138254502721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 127205452831231 - 2²⁵ = 127205419276799 is a prime.

It is a super-2 number, since 2×127205452831231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127205452831291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10774638586 + ... + 10774650391.

It is an arithmetic number, because the mean of its divisors is an integer number (31806750531528).

Almost surely, 2^{127205452831231} is an apocalyptic number.

127205452831231 is a deficient number, since it is larger than the sum of its proper divisors (21549294881).

127205452831231 is an equidigital number, since it uses as much as digits as its factorization.

127205452831231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21549294880.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 127205452831231 in words is "one hundred twenty-seven trillion, two hundred five billion, four hundred fifty-two million, eight hundred thirty-one thousand, two hundred thirty-one".