1240121303204 has 12 divisors (see below), whose sum is σ = 2480242606464. Its totient is φ = 531480558504.

The previous prime is 1240121303137. The next prime is 1240121303227. The reversal of 1240121303204 is 4023031210421.

1240121303204 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240121303204.

It is an unprimeable number.

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, 22145023244 + ... + 22145023299.

It is an arithmetic number, because the mean of its divisors is an integer number (206686883872).

Almost surely, 2^{1240121303204} is an apocalyptic number.

1240121303204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1240121303204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1240121303204 is a wasteful number, since it uses less digits than its factorization.

1240121303204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44290046554 (or 44290046552 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1240121303204 its reverse (4023031210421), we get a palindrome (5263152513625).

The spelling of 1240121303204 in words is "one trillion, two hundred forty billion, one hundred twenty-one million, three hundred three thousand, two hundred four".