1240102535320 has 256 divisors, whose sum is σ = 3284308684800. Its totient is φ = 416415375360.

The previous prime is 1240102535317. The next prime is 1240102535327. The reversal of 1240102535320 is 235352010421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240102535327) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 83970577 + ... + 83985343.

It is an arithmetic number, because the mean of its divisors is an integer number (12829330800).

Almost surely, 2^{1240102535320} is an apocalyptic number.

1240102535320 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 1240102535320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1642154342400).

1240102535320 is an abundant number, since it is smaller than the sum of its proper divisors (2044206149480).

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

1240102535320 is a wasteful number, since it uses less digits than its factorization.

1240102535320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15018 (or 15014 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 1240102535320 its reverse (235352010421), we get a palindrome (1475454545741).

The spelling of 1240102535320 in words is "one trillion, two hundred forty billion, one hundred two million, five hundred thirty-five thousand, three hundred twenty".