1144344431320 has 128 divisors (see below), whose sum is σ = 2717991936000. Its totient is φ = 432416033280.

The previous prime is 1144344431303. The next prime is 1144344431333. The reversal of 1144344431320 is 231344434411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 722895249 + ... + 722896831.

It is an arithmetic number, because the mean of its divisors is an integer number (21234312000).

Almost surely, 2^{1144344431320} is an apocalyptic number.

1144344431320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144344431320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1358995968000).

1144344431320 is an abundant number, since it is smaller than the sum of its proper divisors (1573647504680).

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

1144344431320 is a wasteful number, since it uses less digits than its factorization.

1144344431320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713 (or 3709 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 1144344431320 its reverse (231344434411), we get a palindrome (1375688865731).

The spelling of 1144344431320 in words is "one trillion, one hundred forty-four billion, three hundred forty-four million, four hundred thirty-one thousand, three hundred twenty".