1003103103120 has 160 divisors (see below), whose sum is σ = 3165421400064. Its totient is φ = 262722700800.

The previous prime is 1003103103073. The next prime is 1003103103139. The reversal of 1003103103120 is 213013013001.

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 1003103103120.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4369605 + ... + 4593435.

Almost surely, 2^{1003103103120} is an apocalyptic number.

1003103103120 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 1003103103120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1582710700032).

1003103103120 is an abundant number, since it is smaller than the sum of its proper divisors (2162318296944).

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

1003103103120 is a wasteful number, since it uses less digits than its factorization.

1003103103120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224181 (or 224175 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 1003103103120 its reverse (213013013001), we get a palindrome (1216116116121).

The spelling of 1003103103120 in words is "one trillion, three billion, one hundred three million, one hundred three thousand, one hundred twenty".