1443404002001 has 16 divisors (see below), whose sum is σ = 1618932043008. Its totient is φ = 1278104184000.

The previous prime is 1443404001943. The next prime is 1443404002031. The reversal of 1443404002001 is 1002004043441.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1443404002001 - 2¹⁸ = 1443403739857 is a prime.

It is a super-2 number, since 2×1443404002001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1443404002031) 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, 21098525 + ... + 21166826.

It is an arithmetic number, because the mean of its divisors is an integer number (101183252688).

Almost surely, 2^{1443404002001} is an apocalyptic number.

It is an amenable number.

1443404002001 is a deficient number, since it is larger than the sum of its proper divisors (175528041007).

1443404002001 is a wasteful number, since it uses less digits than its factorization.

1443404002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42265472.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 1443404002001 its reverse (1002004043441), we get a palindrome (2445408045442).

The spelling of 1443404002001 in words is "one trillion, four hundred forty-three billion, four hundred four million, two thousand, one".