1021132040240 has 160 divisors (see below), whose sum is σ = 2603160262080. Its totient is φ = 370226368512.

The previous prime is 1021132040179. The next prime is 1021132040261. The reversal of 1021132040240 is 420402311201.

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

It is an unprimeable number.

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, 22065446 + ... + 22111674.

It is an arithmetic number, because the mean of its divisors is an integer number (16269751638).

Almost surely, 2^{1021132040240} is an apocalyptic number.

1021132040240 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 1021132040240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1301580131040).

1021132040240 is an abundant number, since it is smaller than the sum of its proper divisors (1582028221840).

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

1021132040240 is a wasteful number, since it uses less digits than its factorization.

1021132040240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46639 (or 46633 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1021132040240 its reverse (420402311201), we get a palindrome (1441534351441).

The spelling of 1021132040240 in words is "one trillion, twenty-one billion, one hundred thirty-two million, forty thousand, two hundred forty".