1240445350013 has 4 divisors (see below), whose sum is σ = 1241302604640. Its totient is φ = 1239588095388.

The previous prime is 1240445350009. The next prime is 1240445350033. The reversal of 1240445350013 is 3100535440421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1240445350013 - 2² = 1240445350009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240445350033) 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, 428625143 + ... + 428628036.

It is an arithmetic number, because the mean of its divisors is an integer number (310325651160).

Almost surely, 2^{1240445350013} is an apocalyptic number.

It is an amenable number.

1240445350013 is a deficient number, since it is larger than the sum of its proper divisors (857254627).

1240445350013 is an equidigital number, since it uses as much as digits as its factorization.

1240445350013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857254626.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 1240445350013 in words is "one trillion, two hundred forty billion, four hundred forty-five million, three hundred fifty thousand, thirteen".