1144401351521 has 8 divisors (see below), whose sum is σ = 1148451345600. Its totient is φ = 1140353731440.

The previous prime is 1144401351479. The next prime is 1144401351563. The reversal of 1144401351521 is 1251531044411.

It is an interprime number because it is at equal distance from previous prime (1144401351479) and next prime (1144401351563).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144401351521 - 2³⁸ = 869523444577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144401351421) 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 7 ways as a sum of consecutive naturals, for example, 375110 + ... + 1558688.

It is an arithmetic number, because the mean of its divisors is an integer number (143556418200).

Almost surely, 2^{1144401351521} is an apocalyptic number.

It is an amenable number.

1144401351521 is a deficient number, since it is larger than the sum of its proper divisors (4049994079).

1144401351521 is a wasteful number, since it uses less digits than its factorization.

1144401351521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186999.

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 1144401351521 its reverse (1251531044411), we get a palindrome (2395932395932).

The spelling of 1144401351521 in words is "one trillion, one hundred forty-four billion, four hundred one million, three hundred fifty-one thousand, five hundred twenty-one".