1000002100320 has 216 divisors, whose sum is σ = 3625052374944. Its totient is φ = 250980814848.

The previous prime is 1000002100249. The next prime is 1000002100327. The reversal of 1000002100320 is 230012000001.

It is a happy number.

It is a super-2 number, since 2×1000002100320² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000002100327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 785304 + ... + 1617623.

It is an arithmetic number, because the mean of its divisors is an integer number (16782649884).

Almost surely, 2^{1000002100320} is an apocalyptic number.

1000002100320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000002100320 is an abundant number, since it is smaller than the sum of its proper divisors (2625050274624).

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

1000002100320 is a wasteful number, since it uses less digits than its factorization.

1000002100320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402982 (or 2402954 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 1000002100320 its reverse (230012000001), we get a palindrome (1230014100321).

The spelling of 1000002100320 in words is "one trillion, two million, one hundred thousand, three hundred twenty".