1131112220100 has 72 divisors (see below), whose sum is σ = 3273052573728. Its totient is φ = 301596019200.

The previous prime is 1131112220087. The next prime is 1131112220113. The reversal of 1131112220100 is 10222111311.

It is an interprime number because it is at equal distance from previous prime (1131112220087) and next prime (1131112220113).

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 1131112220100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2519932 + ... + 2934668.

It is an arithmetic number, because the mean of its divisors is an integer number (45459063524).

Almost surely, 2^{1131112220100} is an apocalyptic number.

1131112220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131112220100 is an abundant number, since it is smaller than the sum of its proper divisors (2141940353628).

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

1131112220100 is a wasteful number, since it uses less digits than its factorization.

1131112220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423845 (or 423838 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1131112220100 its reverse (10222111311), we get a palindrome (1141334331411).

The spelling of 1131112220100 in words is "one trillion, one hundred thirty-one billion, one hundred twelve million, two hundred twenty thousand, one hundred".