20673271111 has 8 divisors (see below), whose sum is σ = 20712750464. Its totient is φ = 20633815800.

The previous prime is 20673271067. The next prime is 20673271127. The reversal of 20673271111 is 11117237602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20673271111 - 2⁷ = 20673270983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20673275111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3357886 + ... + 3364036.

It is an arithmetic number, because the mean of its divisors is an integer number (2589093808).

Almost surely, 2^20673271111 is an apocalyptic number.

20673271111 is a deficient number, since it is larger than the sum of its proper divisors (39479353).

20673271111 is an equidigital number, since it uses as much as digits as its factorization.

20673271111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12021.

The product of its (nonzero) digits is 3528, while the sum is 31.

The spelling of 20673271111 in words is "twenty billion, six hundred seventy-three million, two hundred seventy-one thousand, one hundred eleven".