1240131222330 has 384 divisors, whose sum is σ = 4029958656000. Its totient is φ = 237167124480.

The previous prime is 1240131222307. The next prime is 1240131222397. The reversal of 1240131222330 is 332221310421.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240131222330.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 137803171 + ... + 137812169.

It is an arithmetic number, because the mean of its divisors is an integer number (10494684000).

Almost surely, 2^{1240131222330} is an apocalyptic number.

1240131222330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1240131222330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2014979328000).

1240131222330 is an abundant number, since it is smaller than the sum of its proper divisors (2789827433670).

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

1240131222330 is a wasteful number, since it uses less digits than its factorization.

1240131222330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9406 (or 9393 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1240131222330 its reverse (332221310421), we get a palindrome (1572352532751).

The spelling of 1240131222330 in words is "one trillion, two hundred forty billion, one hundred thirty-one million, two hundred twenty-two thousand, three hundred thirty".