1001903798322 has 128 divisors (see below), whose sum is σ = 2565687214080. Its totient is φ = 283878665280.

The previous prime is 1001903798309. The next prime is 1001903798323. The reversal of 1001903798322 is 2238973091001.

1001903798322 is a `hidden beast` number, since 10 + 0 + 190 + 379 + 83 + 2 + 2 = 666.

It is a super-2 number, since 2×1001903798322² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1001903798323) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 190437172 + ... + 190442432.

It is an arithmetic number, because the mean of its divisors is an integer number (20044431360).

Almost surely, 2^{1001903798322} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001903798322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1282843607040).

1001903798322 is an abundant number, since it is smaller than the sum of its proper divisors (1563783415758).

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

1001903798322 is a wasteful number, since it uses less digits than its factorization.

1001903798322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373 (or 9367 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 1001903798322 in words is "one trillion, one billion, nine hundred three million, seven hundred ninety-eight thousand, three hundred twenty-two".