1204143441021 has 16 divisors (see below), whose sum is σ = 1784080893120. Its totient is φ = 802688186160.

The previous prime is 1204143440971. The next prime is 1204143441041. The reversal of 1204143441021 is 1201443414021.

1204143441021 is a `hidden beast` number, since 1 + 204 + 1 + 43 + 4 + 410 + 2 + 1 = 666.

It is not a de Polignac number, because 1204143441021 - 2³³ = 1195553506429 is a prime.

It is a super-2 number, since 2×1204143441021² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204143441041) 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 15 ways as a sum of consecutive naturals, for example, 1759875 + ... + 2346368.

It is an arithmetic number, because the mean of its divisors is an integer number (111505055820).

Almost surely, 2^{1204143441021} is an apocalyptic number.

It is an amenable number.

1204143441021 is a deficient number, since it is larger than the sum of its proper divisors (579937452099).

1204143441021 is a wasteful number, since it uses less digits than its factorization.

1204143441021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117113 (or 4117107 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1204143441021 its reverse (1201443414021), we get a palindrome (2405586855042).

The spelling of 1204143441021 in words is "one trillion, two hundred four billion, one hundred forty-three million, four hundred forty-one thousand, twenty-one".