1020003123103 has 8 divisors (see below), whose sum is σ = 1026784642208. Its totient is φ = 1013225207904.

The previous prime is 1020003123089. The next prime is 1020003123107. The reversal of 1020003123103 is 3013213000201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020003123103 - 2²⁵ = 1019969568671 is a prime.

It is a super-2 number, since 2×1020003123103² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020003123107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331851 + ... + 1466332.

It is an arithmetic number, because the mean of its divisors is an integer number (128348080276).

Almost surely, 2^{1020003123103} is an apocalyptic number.

1020003123103 is a deficient number, since it is larger than the sum of its proper divisors (6781519105).

1020003123103 is a wasteful number, since it uses less digits than its factorization.

1020003123103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801953.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1020003123103 its reverse (3013213000201), we get a palindrome (4033216123304).

The spelling of 1020003123103 in words is "one trillion, twenty billion, three million, one hundred twenty-three thousand, one hundred three".