1002311324440 has 16 divisors (see below), whose sum is σ = 2255200480080. Its totient is φ = 400924529760.

The previous prime is 1002311324437. The next prime is 1002311324449. The reversal of 1002311324440 is 444231132001.

It is a super-2 number, since 2×1002311324440² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002311324449) 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 3 ways as a sum of consecutive naturals, for example, 12528891516 + ... + 12528891595.

It is an arithmetic number, because the mean of its divisors is an integer number (140950030005).

Almost surely, 2^{1002311324440} is an apocalyptic number.

1002311324440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002311324440 is an abundant number, since it is smaller than the sum of its proper divisors (1252889155640).

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

1002311324440 is a wasteful number, since it uses less digits than its factorization.

1002311324440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25057783122 (or 25057783118 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1002311324440 its reverse (444231132001), we get a palindrome (1446542456441).

The spelling of 1002311324440 in words is "one trillion, two billion, three hundred eleven million, three hundred twenty-four thousand, four hundred forty".