1002101203 has 4 divisors (see below), whose sum is σ = 1002689280. Its totient is φ = 1001513128.

The previous prime is 1002101161. The next prime is 1002101239. The reversal of 1002101203 is 3021012001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002101203 - 2²⁵ = 968546771 is a prime.

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 1002101203.

It is not an unprimeable number, because it can be changed into a prime (1002101603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291475 + ... + 294892.

It is an arithmetic number, because the mean of its divisors is an integer number (250672320).

Almost surely, 2^1002101203 is an apocalyptic number.

1002101203 is a deficient number, since it is larger than the sum of its proper divisors (588077).

1002101203 is an equidigital number, since it uses as much as digits as its factorization.

1002101203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588076.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1002101203 is about 31655.9821044933. The cubic root of 1002101203 is about 1000.6999110103.

Adding to 1002101203 its reverse (3021012001), we get a palindrome (4023113204).

The spelling of 1002101203 in words is "one billion, two million, one hundred one thousand, two hundred three".