4323121020 has 72 divisors (see below), whose sum is σ = 13131203904. Its totient is φ = 1151273088.

The previous prime is 4323121003. The next prime is 4323121051. The reversal of 4323121020 is 201213234.

4323121020 is a `hidden beast` number, since 432 + 3 + 1 + 210 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4323120984 and 4323121002.

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 23 ways as a sum of consecutive naturals, for example, 120397 + ... + 152123.

It is an arithmetic number, because the mean of its divisors is an integer number (182377832).

Almost surely, 2^4323121020 is an apocalyptic number.

It is an amenable number.

4323121020 is an abundant number, since it is smaller than the sum of its proper divisors (8808082884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4323121020 is a wasteful number, since it uses less digits than its factorization.

4323121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32499 (or 32494 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4323121020 is about 65750.4450175054. The cubic root of 4323121020 is about 1629.0426862683.

Adding to 4323121020 its reverse (201213234), we get a palindrome (4524334254).

The spelling of 4323121020 in words is "four billion, three hundred twenty-three million, one hundred twenty-one thousand, twenty".