11103113121000 has 64 divisors (see below), whose sum is σ = 34641712946880. Its totient is φ = 2960830164800.

The previous prime is 11103113120969. The next prime is 11103113121013. The reversal of 11103113121000 is 12131130111.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1850515854 + ... + 1850521853.

It is an arithmetic number, because the mean of its divisors is an integer number (541276764795).

Almost surely, 2^{11103113121000} is an apocalyptic number.

11103113121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11103113121000 is an abundant number, since it is smaller than the sum of its proper divisors (23538599825880).

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

11103113121000 is a wasteful number, since it uses less digits than its factorization.

11103113121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701037731 (or 3701037717 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 11103113121000 its reverse (12131130111), we get a palindrome (11115244251111).

The spelling of 11103113121000 in words is "eleven trillion, one hundred three billion, one hundred thirteen million, one hundred twenty-one thousand".