2123020203203 has 2 divisors, whose sum is σ = 2123020203204. Its totient is φ = 2123020203202.

The previous prime is 2123020203197. The next prime is 2123020203223. The reversal of 2123020203203 is 3023020203212.

It is an a-pointer prime, because the next prime (2123020203223) can be obtained adding 2123020203203 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2123020203203 - 2¹² = 2123020199107 is a prime.

It is a super-2 number, since 2×2123020203203² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2123020203223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061510101601 + 1061510101602.

It is an arithmetic number, because the mean of its divisors is an integer number (1061510101602).

Almost surely, 2^{2123020203203} is an apocalyptic number.

2123020203203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123020203203 is an equidigital number, since it uses as much as digits as its factorization.

2123020203203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 2123020203203 its reverse (3023020203212), we get a palindrome (5146040406415).

Subtracting 2123020203203 from its reverse (3023020203212), we obtain a palindrome (900000000009).

The spelling of 2123020203203 in words is "two trillion, one hundred twenty-three billion, twenty million, two hundred three thousand, two hundred three".