1002309902128 has 80 divisors (see below), whose sum is σ = 2018687581440. Its totient is φ = 481589222400.

The previous prime is 1002309902123. The next prime is 1002309902129. The reversal of 1002309902128 is 8212099032001.

It is not an unprimeable number, because it can be changed into a prime (1002309902123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161114058 + ... + 161120278.

It is an arithmetic number, because the mean of its divisors is an integer number (25233594768).

Almost surely, 2^{1002309902128} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002309902128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009343790720).

1002309902128 is an abundant number, since it is smaller than the sum of its proper divisors (1016377679312).

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

1002309902128 is a wasteful number, since it uses less digits than its factorization.

1002309902128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8486 (or 8480 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 1002309902128 in words is "one trillion, two billion, three hundred nine million, nine hundred two thousand, one hundred twenty-eight".