1111001131320 has 64 divisors (see below), whose sum is σ = 3333074624640. Its totient is φ = 296260636800.

The previous prime is 1111001131319. The next prime is 1111001131337. The reversal of 1111001131320 is 231311001111.

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 1111001131320.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9050755 + ... + 9172685.

It is an arithmetic number, because the mean of its divisors is an integer number (52079291010).

Almost surely, 2^{1111001131320} is an apocalyptic number.

1111001131320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111001131320 is an abundant number, since it is smaller than the sum of its proper divisors (2222073493320).

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

1111001131320 is a wasteful number, since it uses less digits than its factorization.

1111001131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197876 (or 197872 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 1111001131320 its reverse (231311001111), we get a palindrome (1342312132431).

The spelling of 1111001131320 in words is "one trillion, one hundred eleven billion, one million, one hundred thirty-one thousand, three hundred twenty".