1103112122100 has 72 divisors (see below), whose sum is σ = 3214968062208. Its totient is φ = 292016044800.

The previous prime is 1103112122081. The next prime is 1103112122149. The reversal of 1103112122100 is 12212113011.

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 1103112122100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13378756 + ... + 13460955.

Almost surely, 2^{1103112122100} is an apocalyptic number.

1103112122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103112122100 is an abundant number, since it is smaller than the sum of its proper divisors (2111855940108).

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

1103112122100 is a wasteful number, since it uses less digits than its factorization.

1103112122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26839865 (or 26839858 counting only the distinct ones).

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

Adding to 1103112122100 its reverse (12212113011), we get a palindrome (1115324235111).

The spelling of 1103112122100 in words is "one trillion, one hundred three billion, one hundred twelve million, one hundred twenty-two thousand, one hundred".