1240020333423 has 12 divisors (see below), whose sum is σ = 1800232567848. Its totient is φ = 822483874800.

The previous prime is 1240020333421. The next prime is 1240020333491. The reversal of 1240020333423 is 3243330200421.

1240020333423 is a `hidden beast` number, since 1 + 2 + 4 + 0 + 0 + 203 + 33 + 423 = 666.

It is not a de Polignac number, because 1240020333423 - 2¹ = 1240020333421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240020333421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 349693753 + ... + 349697298.

It is an arithmetic number, because the mean of its divisors is an integer number (150019380654).

Almost surely, 2^{1240020333423} is an apocalyptic number.

1240020333423 is a deficient number, since it is larger than the sum of its proper divisors (560212234425).

1240020333423 is a wasteful number, since it uses less digits than its factorization.

1240020333423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699391254 (or 699391251 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 1240020333423 its reverse (3243330200421), we get a palindrome (4483350533844).

The spelling of 1240020333423 in words is "one trillion, two hundred forty billion, twenty million, three hundred thirty-three thousand, four hundred twenty-three".