21088711133706 has 16 divisors (see below), whose sum is σ = 42198230097504. Its totient is φ = 7026102406224.

The previous prime is 21088711133701. The next prime is 21088711133719. The reversal of 21088711133706 is 60733111788012.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 866979745 + ... + 867004068.

It is an arithmetic number, because the mean of its divisors is an integer number (2637389381094).

Almost surely, 2^{21088711133706} is an apocalyptic number.

21088711133706 is an abundant number, since it is smaller than the sum of its proper divisors (21109518963798).

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

21088711133706 is a wasteful number, since it uses less digits than its factorization.

21088711133706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733985845.

The product of its (nonzero) digits is 338688, while the sum is 48.

The spelling of 21088711133706 in words is "twenty-one trillion, eighty-eight billion, seven hundred eleven million, one hundred thirty-three thousand, seven hundred six".