1003103101020 has 48 divisors (see below), whose sum is σ = 2808954667008. Its totient is φ = 267468828480.

The previous prime is 1003103101001. The next prime is 1003103101027. The reversal of 1003103101020 is 201013013001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1003103100987 and 1003103101005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003103101027) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 148444 + ... + 1424163.

It is an arithmetic number, because the mean of its divisors is an integer number (58519888896).

Almost surely, 2^{1003103101020} is an apocalyptic number.

1003103101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003103101020 is an abundant number, since it is smaller than the sum of its proper divisors (1805851565988).

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

1003103101020 is a wasteful number, since it uses less digits than its factorization.

1003103101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583250 (or 1583248 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 1003103101020 its reverse (201013013001), we get a palindrome (1204116114021).

The spelling of 1003103101020 in words is "one trillion, three billion, one hundred three million, one hundred one thousand, twenty".