23234421043021 has 4 divisors (see below), whose sum is σ = 23234433701500. Its totient is φ = 23234408384544.

The previous prime is 23234421042953. The next prime is 23234421043039. The reversal of 23234421043021 is 12034012443232.

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 7294245017796 + 15940176025225 = 2700786^2 + 3992515^2 .

It is a cyclic number.

It is not a de Polignac number, because 23234421043021 - 2⁷ = 23234421042893 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 (23234421743021) 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, 2988096 + ... + 7442953.

It is an arithmetic number, because the mean of its divisors is an integer number (5808608425375).

Almost surely, 2^{23234421043021} is an apocalyptic number.

It is an amenable number.

23234421043021 is a deficient number, since it is larger than the sum of its proper divisors (12658479).

23234421043021 is a wasteful number, since it uses less digits than its factorization.

23234421043021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12658478.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 23234421043021 its reverse (12034012443232), we get a palindrome (35268433486253).

The spelling of 23234421043021 in words is "twenty-three trillion, two hundred thirty-four billion, four hundred twenty-one million, forty-three thousand, twenty-one".