1101001321320 has 64 divisors (see below), whose sum is σ = 3304779488640. Its totient is φ = 293442528000.

The previous prime is 1101001321219. The next prime is 1101001321331. The reversal of 1101001321320 is 231231001011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1101001321320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2241756 + ... + 2688395.

It is an arithmetic number, because the mean of its divisors is an integer number (51637179510).

Almost surely, 2^{1101001321320} is an apocalyptic number.

1101001321320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101001321320 is an abundant number, since it is smaller than the sum of its proper divisors (2203778167320).

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

1101001321320 is a wasteful number, since it uses less digits than its factorization.

1101001321320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4932026 (or 4932022 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1101001321320 its reverse (231231001011), we get a palindrome (1332232322331).

The spelling of 1101001321320 in words is "one trillion, one hundred one billion, one million, three hundred twenty-one thousand, three hundred twenty".