111121331130012 has 96 divisors (see below), whose sum is σ = 313121197670400. Its totient is φ = 29984150319552.

The previous prime is 111121331130001. The next prime is 111121331130031. The reversal of 111121331130012 is 210031133121111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent 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, 363874062 + ... + 364179317.

It is an arithmetic number, because the mean of its divisors is an integer number (3261679142400).

Almost surely, 2^{111121331130012} is an apocalyptic number.

111121331130012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111121331130012 is an abundant number, since it is smaller than the sum of its proper divisors (201999866540388).

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

111121331130012 is a wasteful number, since it uses less digits than its factorization.

111121331130012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728053495 (or 728053493 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 111121331130012 its reverse (210031133121111), we get a palindrome (321152464251123).

The spelling of 111121331130012 in words is "one hundred eleven trillion, one hundred twenty-one billion, three hundred thirty-one million, one hundred thirty thousand, twelve".