1002003223100 has 72 divisors (see below), whose sum is σ = 2386219022208. Its totient is φ = 362182916800.

The previous prime is 1002003223097. The next prime is 1002003223183. The reversal of 1002003223100 is 13223002001.

It is a happy number.

It is a super-2 number, since 2×1002003223100² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 2543582 + ... + 2910981.

It is an arithmetic number, because the mean of its divisors is an integer number (33141930864).

Almost surely, 2^{1002003223100} is an apocalyptic number.

1002003223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002003223100 is an abundant number, since it is smaller than the sum of its proper divisors (1384215799108).

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

1002003223100 is a wasteful number, since it uses less digits than its factorization.

1002003223100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5454755 (or 5454748 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1002003223100 its reverse (13223002001), we get a palindrome (1015226225101).

The spelling of 1002003223100 in words is "one trillion, two billion, three million, two hundred twenty-three thousand, one hundred".