23234020321 has 2 divisors, whose sum is σ = 23234020322. Its totient is φ = 23234020320.

The previous prime is 23234020307. The next prime is 23234020367. The reversal of 23234020321 is 12302043232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12867726096 + 10366294225 = 113436^2 + 101815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23234020321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23234020292 and 23234020301.

It is not a weakly prime, because it can be changed into another prime (23234020421) 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 as a sum of consecutive naturals, namely, 11617010160 + 11617010161.

It is an arithmetic number, because the mean of its divisors is an integer number (11617010161).

Almost surely, 2^23234020321 is an apocalyptic number.

It is an amenable number.

23234020321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23234020321 is an equidigital number, since it uses as much as digits as its factorization.

23234020321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 23234020321 its reverse (12302043232), we get a palindrome (35536063553).

The spelling of 23234020321 in words is "twenty-three billion, two hundred thirty-four million, twenty thousand, three hundred twenty-one".