1002642003 has 32 divisors (see below), whose sum is σ = 1659974400. Its totient is φ = 592833600.

The previous prime is 1002641999. The next prime is 1002642007. The reversal of 1002642003 is 3002462001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1002641999) and next prime (1002642007).

It is not a de Polignac number, because 1002642003 - 2² = 1002641999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002642007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28993 + ... + 53346.

It is an arithmetic number, because the mean of its divisors is an integer number (51874200).

Almost surely, 2^1002642003 is an apocalyptic number.

1002642003 is a deficient number, since it is larger than the sum of its proper divisors (657332397).

1002642003 is a wasteful number, since it uses less digits than its factorization.

1002642003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82400 (or 82394 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1002642003 is about 31664.5227818137. The cubic root of 1002642003 is about 1000.8798932275.

The spelling of 1002642003 in words is "one billion, two million, six hundred forty-two thousand, three".