111001211320 has 32 divisors (see below), whose sum is σ = 250287570000. Its totient is φ = 44305401088.

The previous prime is 111001211311. The next prime is 111001211359. The reversal of 111001211320 is 23112100111.

It is a happy number.

It is a super-2 number, since 2×111001211320² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111001211320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2952445 + ... + 2989804.

Almost surely, 2^111001211320 is an apocalyptic number.

111001211320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111001211320 is an abundant number, since it is smaller than the sum of its proper divisors (139286358680).

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

111001211320 is a wasteful number, since it uses less digits than its factorization.

111001211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942727 (or 5942723 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111001211320 its reverse (23112100111), we get a palindrome (134113311431).

The spelling of 111001211320 in words is "one hundred eleven billion, one million, two hundred eleven thousand, three hundred twenty".