23442030002021 has 4 divisors (see below), whose sum is σ = 24075598380492. Its totient is φ = 22808461623552.

The previous prime is 23442030001993. The next prime is 23442030002087. The reversal of 23442030002021 is 12020003024432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14780257140100 + 8661772861921 = 3844510^2 + 2943089^2 .

It is a cyclic number.

It is not a de Polignac number, because 23442030002021 - 2³⁸ = 23167152095077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23442030001021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316784189180 + ... + 316784189253.

It is an arithmetic number, because the mean of its divisors is an integer number (6018899595123).

Almost surely, 2^{23442030002021} is an apocalyptic number.

It is an amenable number.

23442030002021 is a deficient number, since it is larger than the sum of its proper divisors (633568378471).

23442030002021 is an equidigital number, since it uses as much as digits as its factorization.

23442030002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633568378470.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 23442030002021 its reverse (12020003024432), we get a palindrome (35462033026453).

The spelling of 23442030002021 in words is "twenty-three trillion, four hundred forty-two billion, thirty million, two thousand, twenty-one".