1240271984403 has 24 divisors (see below), whose sum is σ = 1833376514112. Its totient is φ = 807526602288.

The previous prime is 1240271984381. The next prime is 1240271984417. The reversal of 1240271984403 is 3044891720421.

1240271984403 is a `hidden beast` number, since 12 + 4 + 0 + 2 + 7 + 198 + 440 + 3 = 666.

It is not a de Polignac number, because 1240271984403 - 2³⁶ = 1171552507667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1240271984443) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3289900 + ... + 3647462.

It is an arithmetic number, because the mean of its divisors is an integer number (76390688088).

Almost surely, 2^{1240271984403} is an apocalyptic number.

1240271984403 is a deficient number, since it is larger than the sum of its proper divisors (593104529709).

1240271984403 is a wasteful number, since it uses less digits than its factorization.

1240271984403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366575 (or 366572 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 1240271984403 in words is "one trillion, two hundred forty billion, two hundred seventy-one million, nine hundred eighty-four thousand, four hundred three".