27121034071 has 2 divisors, whose sum is σ = 27121034072. Its totient is φ = 27121034070.

The previous prime is 27121034069. The next prime is 27121034123. The reversal of 27121034071 is 17043012172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27121034071 - 2¹ = 27121034069 is a prime.

Together with 27121034069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27121034011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13560517035 + 13560517036.

It is an arithmetic number, because the mean of its divisors is an integer number (13560517036).

Almost surely, 2^27121034071 is an apocalyptic number.

27121034071 is a deficient number, since it is larger than the sum of its proper divisors (1).

27121034071 is an equidigital number, since it uses as much as digits as its factorization.

27121034071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 28.

The spelling of 27121034071 in words is "twenty-seven billion, one hundred twenty-one million, thirty-four thousand, seventy-one".