1001444123320 has 48 divisors (see below), whose sum is σ = 2355476137560. Its totient is φ = 383161221696.

The previous prime is 1001444123311. The next prime is 1001444123321. The reversal of 1001444123320 is 233214441001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001444123321) 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 11 ways as a sum of consecutive naturals, for example, 23642454 + ... + 23684773.

Almost surely, 2^{1001444123320} is an apocalyptic number.

1001444123320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001444123320 is an abundant number, since it is smaller than the sum of its proper divisors (1354032014240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001444123320 is a wasteful number, since it uses less digits than its factorization.

1001444123320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47327284 (or 47327257 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1001444123320 its reverse (233214441001), we get a palindrome (1234658564321).

The spelling of 1001444123320 in words is "one trillion, one billion, four hundred forty-four million, one hundred twenty-three thousand, three hundred twenty".