1241440321243 has 16 divisors (see below), whose sum is σ = 1324059644160. Its totient is φ = 1161412311136.

The previous prime is 1241440321213. The next prime is 1241440321249. The reversal of 1241440321243 is 3421230441421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1241440321243 - 2¹³ = 1241440313051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1241440321249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2054605 + ... + 2589262.

It is an arithmetic number, because the mean of its divisors is an integer number (82753727760).

Almost surely, 2^{1241440321243} is an apocalyptic number.

1241440321243 is a deficient number, since it is larger than the sum of its proper divisors (82619322917).

1241440321243 is a wasteful number, since it uses less digits than its factorization.

1241440321243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4644146.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 1241440321243 its reverse (3421230441421), we get a palindrome (4662670762664).

The spelling of 1241440321243 in words is "one trillion, two hundred forty-one billion, four hundred forty million, three hundred twenty-one thousand, two hundred forty-three".