111131121031100 has 36 divisors (see below), whose sum is σ = 247036350515808. Its totient is φ = 43368242352000.

The previous prime is 111131121031093. The next prime is 111131121031157. The reversal of 111131121031100 is 1130121131111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13552571636 + ... + 13552579835.

Almost surely, 2^{111131121031100} is an apocalyptic number.

111131121031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111131121031100 is an abundant number, since it is smaller than the sum of its proper divisors (135905229484708).

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

111131121031100 is a wasteful number, since it uses less digits than its factorization.

111131121031100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27105151526 (or 27105151519 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 111131121031100 its reverse (1130121131111), we get a palindrome (112261242162211).

The spelling of 111131121031100 in words is "one hundred eleven trillion, one hundred thirty-one billion, one hundred twenty-one million, thirty-one thousand, one hundred".