23443102021 has 8 divisors (see below), whose sum is σ = 23848037784. Its totient is φ = 23041555200.

The previous prime is 23443102013. The next prime is 23443102091. The reversal of 23443102021 is 12020134432.

It can be written as a sum of positive squares in 4 ways, for example, as 15008700100 + 8434401921 = 122510^2 + 91839^2 .

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 23443102021 - 2³ = 23443102013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23443101983 and 23443102001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23443102091) 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 7 ways as a sum of consecutive naturals, for example, 833280 + ... + 860953.

It is an arithmetic number, because the mean of its divisors is an integer number (2981004723).

Almost surely, 2^23443102021 is an apocalyptic number.

It is an amenable number.

23443102021 is a deficient number, since it is larger than the sum of its proper divisors (404935763).

23443102021 is a wasteful number, since it uses less digits than its factorization.

23443102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694471.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 23443102021 its reverse (12020134432), we get a palindrome (35463236453).

The spelling of 23443102021 in words is "twenty-three billion, four hundred forty-three million, one hundred two thousand, twenty-one".