2120203 has 2 divisors, whose sum is σ = 2120204. Its totient is φ = 2120202.

The previous prime is 2120171. The next prime is 2120207. The reversal of 2120203 is 3020212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2120203 - 2⁵ = 2120171 is a prime.

It is a super-2 number, since 2×2120203² = 8990521522418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2120203.

It is not a weakly prime, because it can be changed into another prime (2120207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060101 + 1060102.

It is an arithmetic number, because the mean of its divisors is an integer number (1060102).

2^2120203 is an apocalyptic number.

2120203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120203 is an equidigital number, since it uses as much as digits as its factorization.

2120203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2120203 is about 1456.0916866736. The cubic root of 2120203 is about 128.4672659584.

Adding to 2120203 its reverse (3020212), we get a palindrome (5140415).

Subtracting 2120203 from its reverse (3020212), we obtain a palindrome (900009).

The spelling of 2120203 in words is "two million, one hundred twenty thousand, two hundred three".