2123251205 has 8 divisors (see below), whose sum is σ = 2607155232. Its totient is φ = 1659098448.

The previous prime is 2123251171. The next prime is 2123251213. The reversal of 2123251205 is 5021523212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2123251205 - 2⁸ = 2123250949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4937579 + ... + 4938008.

It is an arithmetic number, because the mean of its divisors is an integer number (325894404).

Almost surely, 2^2123251205 is an apocalyptic number.

It is an amenable number.

2123251205 is a deficient number, since it is larger than the sum of its proper divisors (483904027).

2123251205 is an equidigital number, since it uses as much as digits as its factorization.

2123251205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9875635.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2123251205 is about 46078.7500373003. The cubic root of 2123251205 is about 1285.2880205466.

Adding to 2123251205 its reverse (5021523212), we get a palindrome (7144774417).

The spelling of 2123251205 in words is "two billion, one hundred twenty-three million, two hundred fifty-one thousand, two hundred five".