1002321000120 has 128 divisors (see below), whose sum is σ = 3368980823040. Its totient is φ = 236419683840.

The previous prime is 1002321000119. The next prime is 1002321000167. The reversal of 1002321000120 is 210001232001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1002321000096 and 1002321000105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10212432 + ... + 10310111.

It is an arithmetic number, because the mean of its divisors is an integer number (26320162680).

Almost surely, 2^{1002321000120} is an apocalyptic number.

1002321000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002321000120 is an abundant number, since it is smaller than the sum of its proper divisors (2366659822920).

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

1002321000120 is a wasteful number, since it uses less digits than its factorization.

1002321000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20522605 (or 20522601 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1002321000120 its reverse (210001232001), we get a palindrome (1212322232121).

The spelling of 1002321000120 in words is "one trillion, two billion, three hundred twenty-one million, one hundred twenty", and thus it is an aban number.