21088711133707 has 16 divisors (see below), whose sum is σ = 24446863590912. Its totient is φ = 17818413408000.

The previous prime is 21088711133701. The next prime is 21088711133719. The reversal of 21088711133707 is 70733111788012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21088711133707 - 2³¹ = 21086563650059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21088711133701) 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 15 ways as a sum of consecutive naturals, for example, 61699063 + ... + 62039920.

It is an arithmetic number, because the mean of its divisors is an integer number (1527928974432).

Almost surely, 2^{21088711133707} is an apocalyptic number.

21088711133707 is a deficient number, since it is larger than the sum of its proper divisors (3358152457205).

21088711133707 is a wasteful number, since it uses less digits than its factorization.

21088711133707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123739338.

The product of its (nonzero) digits is 395136, while the sum is 49.

The spelling of 21088711133707 in words is "twenty-one trillion, eighty-eight billion, seven hundred eleven million, one hundred thirty-three thousand, seven hundred seven".