3123200121 has 8 divisors (see below), whose sum is σ = 4298598144. Its totient is φ = 2014967760.

The previous prime is 3123200117. The next prime is 3123200159. The reversal of 3123200121 is 1210023213.

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

It is not a de Polignac number, because 3123200121 - 2² = 3123200117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3123200121.

It is not an unprimeable number, because it can be changed into a prime (3123270121) 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, 16791306 + ... + 16791491.

It is an arithmetic number, because the mean of its divisors is an integer number (537324768).

Almost surely, 2^3123200121 is an apocalyptic number.

3123200121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3123200121 is a deficient number, since it is larger than the sum of its proper divisors (1175398023).

3123200121 is a wasteful number, since it uses less digits than its factorization.

3123200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33582831.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3123200121 is about 55885.5985116023. The cubic root of 3123200121 is about 1461.7281283677.

Adding to 3123200121 its reverse (1210023213), we get a palindrome (4333223334).

The spelling of 3123200121 in words is "three billion, one hundred twenty-three million, two hundred thousand, one hundred twenty-one".