8311202021138 has 16 divisors (see below), whose sum is σ = 12771123071616. Its totient is φ = 4054164992160.

The previous prime is 8311202021081. The next prime is 8311202021207.

8311202021138 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3299795 + ... + 5245097.

It is an arithmetic number, because the mean of its divisors is an integer number (798195191976).

Almost surely, 2^{8311202021138} is an apocalyptic number.

8311202021138 is a deficient number, since it is larger than the sum of its proper divisors (4459921050478).

8311202021138 is a wasteful number, since it uses less digits than its factorization.

8311202021138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997449.

The product of its (nonzero) digits is 4608, while the sum is 32.

The spelling of 8311202021138 in words is "eight trillion, three hundred eleven billion, two hundred two million, twenty-one thousand, one hundred thirty-eight".