1205444240001 has 16 divisors (see below), whose sum is σ = 1790085243520. Its totient is φ = 801720627120.

The previous prime is 1205444239973. The next prime is 1205444240003. The reversal of 1205444240001 is 1000424445021.

It is not a de Polignac number, because 1205444240001 - 2¹⁷ = 1205444108929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1205444240003) 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, 53012485 + ... + 53035218.

It is an arithmetic number, because the mean of its divisors is an integer number (111880327720).

Almost surely, 2^{1205444240001} is an apocalyptic number.

It is an amenable number.

1205444240001 is a deficient number, since it is larger than the sum of its proper divisors (584641003519).

1205444240001 is a wasteful number, since it uses less digits than its factorization.

1205444240001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106048133 (or 106048127 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 1205444240001 its reverse (1000424445021), we get a palindrome (2205868685022).

The spelling of 1205444240001 in words is "one trillion, two hundred five billion, four hundred forty-four million, two hundred forty thousand, one".