23321301021 has 24 divisors (see below), whose sum is σ = 35070729720. Its totient is φ = 14920091136.

The previous prime is 23321301013. The next prime is 23321301067. The reversal of 23321301021 is 12010312332.

23321301021 is a `hidden beast` number, since 23 + 321 + 301 + 0 + 21 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5298238521 + 18023062500 = 72789^2 + 134250^2 .

It is not a de Polignac number, because 23321301021 - 2³ = 23321301013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23321300985 and 23321301003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23321301001) 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 23 ways as a sum of consecutive naturals, for example, 455376 + ... + 503993.

It is an arithmetic number, because the mean of its divisors is an integer number (1461280405).

Almost surely, 2^23321301021 is an apocalyptic number.

It is an amenable number.

23321301021 is a deficient number, since it is larger than the sum of its proper divisors (11749428699).

23321301021 is a wasteful number, since it uses less digits than its factorization.

23321301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959485 (or 959482 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23321301021 its reverse (12010312332), we get a palindrome (35331613353).

The spelling of 23321301021 in words is "twenty-three billion, three hundred twenty-one million, three hundred one thousand, twenty-one".