1101143520672 has 96 divisors (see below), whose sum is σ = 3115785657600. Its totient is φ = 338493649920.

The previous prime is 1101143520671. The next prime is 1101143520689. The reversal of 1101143520672 is 2760253411011.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (1101143520671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 908329 + ... + 1739927.

It is an arithmetic number, because the mean of its divisors is an integer number (32456100600).

Almost surely, 2^{1101143520672} is an apocalyptic number.

1101143520672 is a gapful number since it is divisible by the number (12) 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 1101143520672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557892828800).

1101143520672 is an abundant number, since it is smaller than the sum of its proper divisors (2014642136928).

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

1101143520672 is a wasteful number, since it uses less digits than its factorization.

1101143520672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832686 (or 832678 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

Adding to 1101143520672 its reverse (2760253411011), we get a palindrome (3861396931683).

The spelling of 1101143520672 in words is "one trillion, one hundred one billion, one hundred forty-three million, five hundred twenty thousand, six hundred seventy-two".