1002343001240 has 128 divisors (see below), whose sum is σ = 2590877197440. Its totient is φ = 341874180096.

The previous prime is 1002343001207. The next prime is 1002343001249. The reversal of 1002343001240 is 421003432001.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002343001249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57343382 + ... + 57360858.

It is an arithmetic number, because the mean of its divisors is an integer number (20241228105).

Almost surely, 2^{1002343001240} is an apocalyptic number.

1002343001240 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 1002343001240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295438598720).

1002343001240 is an abundant number, since it is smaller than the sum of its proper divisors (1588534196200).

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

1002343001240 is a wasteful number, since it uses less digits than its factorization.

1002343001240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18549 (or 18545 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1002343001240 its reverse (421003432001), we get a palindrome (1423346433241).

The spelling of 1002343001240 in words is "one trillion, two billion, three hundred forty-three million, one thousand, two hundred forty".