2101242203 has 4 divisors (see below), whose sum is σ = 2101532328. Its totient is φ = 2100952080.

The previous prime is 2101242181. The next prime is 2101242271. The reversal of 2101242203 is 3022421012.

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 2101242203 - 2¹² = 2101238107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101242103) 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, 133913 + ... + 148778.

It is an arithmetic number, because the mean of its divisors is an integer number (525383082).

Almost surely, 2^2101242203 is an apocalyptic number.

2101242203 is a deficient number, since it is larger than the sum of its proper divisors (290125).

2101242203 is an equidigital number, since it uses as much as digits as its factorization.

2101242203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290124.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2101242203 is about 45839.3084917301. The cubic root of 2101242203 is about 1280.8316135160.

Adding to 2101242203 its reverse (3022421012), we get a palindrome (5123663215).

The spelling of 2101242203 in words is "two billion, one hundred one million, two hundred forty-two thousand, two hundred three".