1240420035133 has 8 divisors (see below), whose sum is σ = 1305730692000. Its totient is φ = 1175111917488.

The previous prime is 1240420035109. The next prime is 1240420035137. The reversal of 1240420035133 is 3315300240421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240420035133 - 2³⁷ = 1102981081661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240420035137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412218 + ... + 1628116.

It is an arithmetic number, because the mean of its divisors is an integer number (163216336500).

Almost surely, 2^{1240420035133} is an apocalyptic number.

It is an amenable number.

1240420035133 is a deficient number, since it is larger than the sum of its proper divisors (65310656867).

1240420035133 is a wasteful number, since it uses less digits than its factorization.

1240420035133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269611.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 1240420035133 its reverse (3315300240421), we get a palindrome (4555720275554).

The spelling of 1240420035133 in words is "one trillion, two hundred forty billion, four hundred twenty million, thirty-five thousand, one hundred thirty-three".