111055010100 has 144 divisors (see below), whose sum is σ = 338259100032. Its totient is φ = 28076195840.

The previous prime is 111055010063. The next prime is 111055010119. The reversal of 111055010100 is 1010550111.

It is a super-2 number, since 2×111055010100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111055010100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 708484 + ... + 850916.

It is an arithmetic number, because the mean of its divisors is an integer number (2349021528).

Almost surely, 2^111055010100 is an apocalyptic number.

111055010100 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 111055010100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169129550016).

111055010100 is an abundant number, since it is smaller than the sum of its proper divisors (227204089932).

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

111055010100 is a wasteful number, since it uses less digits than its factorization.

111055010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142586 (or 142579 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 15.

Adding to 111055010100 its reverse (1010550111), we get a palindrome (112065560211).

It can be divided in two parts, 11105 and 5010100, that added together give a palindrome (5021205).

The spelling of 111055010100 in words is "one hundred eleven billion, fifty-five million, ten thousand, one hundred".