2123321203 has 2 divisors, whose sum is σ = 2123321204. Its totient is φ = 2123321202.

The previous prime is 2123321201. The next prime is 2123321237. The reversal of 2123321203 is 3021233212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2123321203 - 2¹ = 2123321201 is a prime.

It is a super-2 number, since 2×2123321203² = 9016985862218734418, which contains 22 as substring.

Together with 2123321201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2123321201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061660601 + 1061660602.

It is an arithmetic number, because the mean of its divisors is an integer number (1061660602).

Almost surely, 2^2123321203 is an apocalyptic number.

2123321203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123321203 is an equidigital number, since it uses as much as digits as its factorization.

2123321203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2123321203 is about 46079.5095785535. The cubic root of 2123321203 is about 1285.3021445784.

Adding to 2123321203 its reverse (3021233212), we get a palindrome (5144554415).

It can be divided in two parts, 21233 and 21203, that added together give a square (42436 = 206²).

The spelling of 2123321203 in words is "two billion, one hundred twenty-three million, three hundred twenty-one thousand, two hundred three".