27311100020 has 24 divisors (see below), whose sum is σ = 57369664800. Its totient is φ = 10921324832.

The previous prime is 27311100017. The next prime is 27311100029. The reversal of 27311100020 is 2000111372.

It is a super-4 number, since 4×27311100020⁴ (a number of 43 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27311100029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122150 + ... + 263709.

It is an arithmetic number, because the mean of its divisors is an integer number (2390402700).

Almost surely, 2^27311100020 is an apocalyptic number.

27311100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27311100020 is an abundant number, since it is smaller than the sum of its proper divisors (30058564780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27311100020 is a wasteful number, since it uses less digits than its factorization.

27311100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389407 (or 389405 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

Adding to 27311100020 its reverse (2000111372), we get a palindrome (29311211392).

The spelling of 27311100020 in words is "twenty-seven billion, three hundred eleven million, one hundred thousand, twenty".