1020003102003 has 8 divisors (see below), whose sum is σ = 1360013621968. Its totient is φ = 679997325024.

The previous prime is 1020003101987. The next prime is 1020003102073. The reversal of 1020003102003 is 3002013000201.

It is a happy number.

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

It is not a de Polignac number, because 1020003102003 - 2⁴ = 1020003101987 is a prime.

It is a super-2 number, since 2×1020003102003² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020003102003.

It is not an unprimeable number, because it can be changed into a prime (1020003102073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649276 + ... + 1568937.

It is an arithmetic number, because the mean of its divisors is an integer number (170001702746).

Almost surely, 2^{1020003102003} is an apocalyptic number.

1020003102003 is a deficient number, since it is larger than the sum of its proper divisors (340010519965).

1020003102003 is a wasteful number, since it uses less digits than its factorization.

1020003102003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371493.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 1020003102003 its reverse (3002013000201), we get a palindrome (4022016102204).

The spelling of 1020003102003 in words is "one trillion, twenty billion, three million, one hundred two thousand, three".