21088711133708 has 12 divisors (see below), whose sum is σ = 38847625772760. Its totient is φ = 9989389484352.

The previous prime is 21088711133701. The next prime is 21088711133719. The reversal of 21088711133708 is 80733111788012.

It is not an unprimeable number, because it can be changed into a prime (21088711133701) 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, 138741520541 + ... + 138741520692.

It is an arithmetic number, because the mean of its divisors is an integer number (3237302147730).

Almost surely, 2^{21088711133708} is an apocalyptic number.

It is an amenable number.

21088711133708 is a deficient number, since it is larger than the sum of its proper divisors (17758914639052).

21088711133708 is a wasteful number, since it uses less digits than its factorization.

21088711133708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277483041256 (or 277483041254 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 50.

The spelling of 21088711133708 in words is "twenty-one trillion, eighty-eight billion, seven hundred eleven million, one hundred thirty-three thousand, seven hundred eight".