1111331302320 has 160 divisors (see below), whose sum is σ = 3531778951680. Its totient is φ = 288911841280.

The previous prime is 1111331302309. The next prime is 1111331302457. The reversal of 1111331302320 is 232031331111.

It is a happy 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, 13409971 + ... + 13492589.

It is an arithmetic number, because the mean of its divisors is an integer number (22073618448).

Almost surely, 2^{1111331302320} is an apocalyptic number.

1111331302320 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 1111331302320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1765889475840).

1111331302320 is an abundant number, since it is smaller than the sum of its proper divisors (2420447649360).

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

1111331302320 is a wasteful number, since it uses less digits than its factorization.

1111331302320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84043 (or 84037 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1111331302320 its reverse (232031331111), we get a palindrome (1343362633431).

The spelling of 1111331302320 in words is "one trillion, one hundred eleven billion, three hundred thirty-one million, three hundred two thousand, three hundred twenty".