1240241002013 has 4 divisors (see below), whose sum is σ = 1335644156028. Its totient is φ = 1144837848000.

The previous prime is 1240241001983. The next prime is 1240241002027. The reversal of 1240241002013 is 3102001420421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 811840644484 + 428400357529 = 901022^2 + 654523^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240241002013 - 2¹⁶ = 1240240936477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240241002213) 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 3 ways as a sum of consecutive naturals, for example, 47701576988 + ... + 47701577013.

It is an arithmetic number, because the mean of its divisors is an integer number (333911039007).

Almost surely, 2^{1240241002013} is an apocalyptic number.

1240241002013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1240241002013 is a deficient number, since it is larger than the sum of its proper divisors (95403154015).

1240241002013 is an equidigital number, since it uses as much as digits as its factorization.

1240241002013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95403154014.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1240241002013 its reverse (3102001420421), we get a palindrome (4342242422434).

The spelling of 1240241002013 in words is "one trillion, two hundred forty billion, two hundred forty-one million, two thousand, thirteen".