1001000100868 has 24 divisors (see below), whose sum is σ = 1862402165568. Its totient is φ = 469706361696.

The previous prime is 1001000100847. The next prime is 1001000100869. The reversal of 1001000100868 is 8680010001001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1001000100869) 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, 102640746 + ... + 102650497.

It is an arithmetic number, because the mean of its divisors is an integer number (77600090232).

Almost surely, 2^{1001000100868} is an apocalyptic number.

It is an amenable number.

1001000100868 is a deficient number, since it is larger than the sum of its proper divisors (861402064700).

1001000100868 is a wasteful number, since it uses less digits than its factorization.

1001000100868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205291323 (or 205291321 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 25.

Adding to 1001000100868 its reverse (8680010001001), we get a palindrome (9681010101869).

The spelling of 1001000100868 in words is "one trillion, one billion, one hundred thousand, eight hundred sixty-eight".