1002310021044 has 96 divisors (see below), whose sum is σ = 2691034644480. Its totient is φ = 322285845600.

The previous prime is 1002310021007. The next prime is 1002310021049. The reversal of 1002310021044 is 4401200132001.

1002310021044 is a `hidden beast` number, since 100 + 2 + 310 + 0 + 210 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002310021049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 559917 + ... + 1522539.

It is an arithmetic number, because the mean of its divisors is an integer number (28031610880).

Almost surely, 2^{1002310021044} 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 1002310021044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1345517322240).

1002310021044 is an abundant number, since it is smaller than the sum of its proper divisors (1688724623436).

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

1002310021044 is a wasteful number, since it uses less digits than its factorization.

1002310021044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962978 (or 962970 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1002310021044 its reverse (4401200132001), we get a palindrome (5403510153045).

The spelling of 1002310021044 in words is "one trillion, two billion, three hundred ten million, twenty-one thousand, forty-four".