1002100003836 has 24 divisors (see below), whose sum is σ = 2392610863104. Its totient is φ = 326265117360.

The previous prime is 1002100003813. The next prime is 1002100003837. The reversal of 1002100003836 is 6383000012001.

It is a super-2 number, since 2×1002100003836² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002100003837) 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, 971026620 + ... + 971027651.

It is an arithmetic number, because the mean of its divisors is an integer number (99692119296).

Almost surely, 2^{1002100003836} is an apocalyptic number.

It is an amenable number.

1002100003836 is an abundant number, since it is smaller than the sum of its proper divisors (1390510859268).

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

1002100003836 is a wasteful number, since it uses less digits than its factorization.

1002100003836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942054321 (or 1942054319 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1002100003836 its reverse (6383000012001), we get a palindrome (7385100015837).

The spelling of 1002100003836 in words is "one trillion, two billion, one hundred million, three thousand, eight hundred thirty-six".