1020688603 has 12 divisors (see below), whose sum is σ = 1123408440. Its totient is φ = 926662880.

The previous prime is 1020688601. The next prime is 1020688637. The reversal of 1020688603 is 3068860201.

It is not a de Polignac number, because 1020688603 - 2¹ = 1020688601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020688601) 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 11 ways as a sum of consecutive naturals, for example, 92676 + ... + 103102.

It is an arithmetic number, because the mean of its divisors is an integer number (93617370).

Almost surely, 2^1020688603 is an apocalyptic number.

1020688603 is a deficient number, since it is larger than the sum of its proper divisors (102719837).

1020688603 is a wasteful number, since it uses less digits than its factorization.

1020688603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11258 (or 11247 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1020688603 is about 31948.2175246132. The cubic root of 1020688603 is about 1006.8491825964.

The spelling of 1020688603 in words is "one billion, twenty million, six hundred eighty-eight thousand, six hundred three".