1002323121100 has 108 divisors (see below), whose sum is σ = 2540651476440. Its totient is φ = 342227289600.

The previous prime is 1002323121067. The next prime is 1002323121103. The reversal of 1002323121100 is 11213232001.

It is not an unprimeable number, because it can be changed into a prime (1002323121103) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 756511 + ... + 1605289.

Almost surely, 2^{1002323121100} is an apocalyptic number.

1002323121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002323121100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1270325738220).

1002323121100 is an abundant number, since it is smaller than the sum of its proper divisors (1538328355340).

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

1002323121100 is a wasteful number, since it uses less digits than its factorization.

1002323121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849048 (or 849034 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1002323121100 its reverse (11213232001), we get a palindrome (1013536353101).

The spelling of 1002323121100 in words is "one trillion, two billion, three hundred twenty-three million, one hundred twenty-one thousand, one hundred".