1201441040321 has 4 divisors (see below), whose sum is σ = 1240197202944. Its totient is φ = 1162684877700.

The previous prime is 1201441040251. The next prime is 1201441040329. The reversal of 1201441040321 is 1230401441021.

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 1201441040321 - 2¹⁰ = 1201441039297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201441040329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19378081265 + ... + 19378081326.

It is an arithmetic number, because the mean of its divisors is an integer number (310049300736).

Almost surely, 2^{1201441040321} is an apocalyptic number.

It is an amenable number.

1201441040321 is a deficient number, since it is larger than the sum of its proper divisors (38756162623).

1201441040321 is an equidigital number, since it uses as much as digits as its factorization.

1201441040321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38756162622.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1201441040321 its reverse (1230401441021), we get a palindrome (2431842481342).

The spelling of 1201441040321 in words is "one trillion, two hundred one billion, four hundred forty-one million, forty thousand, three hundred twenty-one".