1111211012320 has 48 divisors (see below), whose sum is σ = 2626815260160. Its totient is φ = 444217019904.

The previous prime is 1111211012311. The next prime is 1111211012333. The reversal of 1111211012320 is 232101121111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1111211012294 and 1111211012303.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1822035 + ... + 2354194.

It is an arithmetic number, because the mean of its divisors is an integer number (54725317920).

Almost surely, 2^{1111211012320} is an apocalyptic number.

1111211012320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111211012320 is an abundant number, since it is smaller than the sum of its proper divisors (1515604247840).

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

1111211012320 is a wasteful number, since it uses less digits than its factorization.

1111211012320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4177907 (or 4177899 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1111211012320 its reverse (232101121111), we get a palindrome (1343312133431).

The spelling of 1111211012320 in words is "one trillion, one hundred eleven billion, two hundred eleven million, twelve thousand, three hundred twenty".