2123213075 has 6 divisors (see below), whose sum is σ = 2632784244. Its totient is φ = 1698570440.

The previous prime is 2123213017. The next prime is 2123213077. The reversal of 2123213075 is 5703123212.

It is not a de Polignac number, because 2123213075 - 2¹⁶ = 2123147539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123213077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42464237 + ... + 42464286.

It is an arithmetic number, because the mean of its divisors is an integer number (438797374).

Almost surely, 2^2123213075 is an apocalyptic number.

2123213075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2123213075 is a deficient number, since it is larger than the sum of its proper divisors (509571169).

2123213075 is an equidigital number, since it uses as much as digits as its factorization.

2123213075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84928533 (or 84928528 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 2123213075 is about 46078.3362872402. The cubic root of 2123213075 is about 1285.2803266344.

Adding to 2123213075 its reverse (5703123212), we get a palindrome (7826336287).

The spelling of 2123213075 in words is "two billion, one hundred twenty-three million, two hundred thirteen thousand, seventy-five".