144021320004 has 24 divisors (see below), whose sum is σ = 336734179488. Its totient is φ = 47909330560.

The previous prime is 144021319999. The next prime is 144021320017. The reversal of 144021320004 is 400023120441.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12215877 + ... + 12227660.

It is an arithmetic number, because the mean of its divisors is an integer number (14030590812).

Almost surely, 2^144021320004 is an apocalyptic number.

It is an amenable number.

144021320004 is an abundant number, since it is smaller than the sum of its proper divisors (192712859484).

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

144021320004 is a wasteful number, since it uses less digits than its factorization.

144021320004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24444035 (or 24444033 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 144021320004 its reverse (400023120441), we get a palindrome (544044440445).

The spelling of 144021320004 in words is "one hundred forty-four billion, twenty-one million, three hundred twenty thousand, four".