2123123201 has 8 divisors (see below), whose sum is σ = 2173608000. Its totient is φ = 2073121840.

The previous prime is 2123123179. The next prime is 2123123203. The reversal of 2123123201 is 1023213212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2123123201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2123123201.

It is not an unprimeable number, because it can be changed into a prime (2123123203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111965 + ... + 129546.

It is an arithmetic number, because the mean of its divisors is an integer number (271701000).

Almost surely, 2^2123123201 is an apocalyptic number.

It is an amenable number.

2123123201 is a deficient number, since it is larger than the sum of its proper divisors (50484799).

2123123201 is a wasteful number, since it uses less digits than its factorization.

2123123201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241719.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2123123201 is about 46077.3610463967. The cubic root of 2123123201 is about 1285.2621913978.

Adding to 2123123201 its reverse (1023213212), we get a palindrome (3146336413).

The spelling of 2123123201 in words is "two billion, one hundred twenty-three million, one hundred twenty-three thousand, two hundred one".