1144012021243 has 48 divisors (see below), whose sum is σ = 1518920260704. Its totient is φ = 851089075200.

The previous prime is 1144012021219. The next prime is 1144012021249. The reversal of 1144012021243 is 3421202104411.

It is not a de Polignac number, because 1144012021243 - 2³⁷ = 1006573067771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144012021249) 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 47 ways as a sum of consecutive naturals, for example, 11331021 + ... + 11431537.

It is an arithmetic number, because the mean of its divisors is an integer number (31644172098).

Almost surely, 2^{1144012021243} is an apocalyptic number.

1144012021243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1144012021243 is a deficient number, since it is larger than the sum of its proper divisors (374908239461).

1144012021243 is a wasteful number, since it uses less digits than its factorization.

1144012021243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101612 (or 101605 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1144012021243 its reverse (3421202104411), we get a palindrome (4565214125654).

The spelling of 1144012021243 in words is "one trillion, one hundred forty-four billion, twelve million, twenty-one thousand, two hundred forty-three".