1001444404023 has 12 divisors (see below), whose sum is σ = 1653178063888. Its totient is φ = 572253945120.

The previous prime is 1001444404019. The next prime is 1001444404043. The reversal of 1001444404023 is 3204044441001.

It is not a de Polignac number, because 1001444404023 - 2² = 1001444404019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001444404043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7947971398 + ... + 7947971523.

Almost surely, 2^{1001444404023} is an apocalyptic number.

1001444404023 is a deficient number, since it is larger than the sum of its proper divisors (651733659865).

1001444404023 is a wasteful number, since it uses less digits than its factorization.

1001444404023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15895942934 (or 15895942931 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 1001444404023 its reverse (3204044441001), we get a palindrome (4205488845024).

The spelling of 1001444404023 in words is "one trillion, one billion, four hundred forty-four million, four hundred four thousand, twenty-three".