126321084271 has 4 divisors (see below), whose sum is σ = 128100254544. Its totient is φ = 124541914000.

The previous prime is 126321084259. The next prime is 126321084277. The reversal of 126321084271 is 172480123621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126321084271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126321084271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126321084277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889585030 + ... + 889585171.

It is an arithmetic number, because the mean of its divisors is an integer number (32025063636).

Almost surely, 2^126321084271 is an apocalyptic number.

126321084271 is a deficient number, since it is larger than the sum of its proper divisors (1779170273).

126321084271 is an equidigital number, since it uses as much as digits as its factorization.

126321084271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779170272.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 126321084271 in words is "one hundred twenty-six billion, three hundred twenty-one million, eighty-four thousand, two hundred seventy-one".