10100021203 has 4 divisors (see below), whose sum is σ = 10117227960. Its totient is φ = 10082814448.

The previous prime is 10100021201. The next prime is 10100021227. The reversal of 10100021203 is 30212000101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30212000101 = 191 ⋅158178011.

It is a cyclic number.

It is not a de Polignac number, because 10100021203 - 2¹ = 10100021201 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 10100021203.

It is not an unprimeable number, because it can be changed into a prime (10100021201) 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, 8602498 + ... + 8603671.

It is an arithmetic number, because the mean of its divisors is an integer number (2529306990).

Almost surely, 2^10100021203 is an apocalyptic number.

10100021203 is a deficient number, since it is larger than the sum of its proper divisors (17206757).

10100021203 is an equidigital number, since it uses as much as digits as its factorization.

10100021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17206756.

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

Adding to 10100021203 its reverse (30212000101), we get a palindrome (40312021304).

The spelling of 10100021203 in words is "ten billion, one hundred million, twenty-one thousand, two hundred three".