1031100110118 has 96 divisors (see below), whose sum is σ = 2558648173536. Its totient is φ = 297283451904.

The previous prime is 1031100110111. The next prime is 1031100110123. The reversal of 1031100110118 is 8110110011301.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1031100110118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031100110111) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 332080 + ... + 1473932.

It is an arithmetic number, because the mean of its divisors is an integer number (26652585141).

Almost surely, 2^{1031100110118} is an apocalyptic number.

1031100110118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031100110118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1279324086768).

1031100110118 is an abundant number, since it is smaller than the sum of its proper divisors (1527548063418).

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

1031100110118 is a wasteful number, since it uses less digits than its factorization.

1031100110118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142118 (or 1142115 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 18.

Adding to 1031100110118 its reverse (8110110011301), we get a palindrome (9141210121419).

The spelling of 1031100110118 in words is "one trillion, thirty-one billion, one hundred million, one hundred ten thousand, one hundred eighteen".