1000120010008 has 96 divisors (see below), whose sum is σ = 2375578771200. Its totient is φ = 385870053888.

The previous prime is 1000120009979. The next prime is 1000120010009. The reversal of 1000120010008 is 8000100210001.

It is a self number, because there is not a number n which added to its sum of digits gives 1000120010008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000120010009) 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 23 ways as a sum of consecutive naturals, for example, 971178 + ... + 1715641.

It is an arithmetic number, because the mean of its divisors is an integer number (24745612200).

Almost surely, 2^{1000120010008} is an apocalyptic number.

It is an amenable number.

1000120010008 is an abundant number, since it is smaller than the sum of its proper divisors (1375458761192).

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

1000120010008 is a wasteful number, since it uses less digits than its factorization.

1000120010008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686889 (or 2686868 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1000120010008 its reverse (8000100210001), we get a palindrome (9000220220009).

The spelling of 1000120010008 in words is "one trillion, one hundred twenty million, ten thousand, eight".