270891052121 has 4 divisors (see below), whose sum is σ = 270908149200. Its totient is φ = 270873955044.

The previous prime is 270891052111. The next prime is 270891052177. The reversal of 270891052121 is 121250198072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-270891052121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (270891052111) 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, 8524751 + ... + 8556468.

It is an arithmetic number, because the mean of its divisors is an integer number (67727037300).

Almost surely, 2^270891052121 is an apocalyptic number.

It is an amenable number.

270891052121 is a deficient number, since it is larger than the sum of its proper divisors (17097079).

270891052121 is a wasteful number, since it uses less digits than its factorization.

270891052121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17097078.

The product of its (nonzero) digits is 20160, while the sum is 38.

The spelling of 270891052121 in words is "two hundred seventy billion, eight hundred ninety-one million, fifty-two thousand, one hundred twenty-one".