23043141221 has 2 divisors, whose sum is σ = 23043141222. Its totient is φ = 23043141220.

The previous prime is 23043141217. The next prime is 23043141223. The reversal of 23043141221 is 12214134032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19736316196 + 3306825025 = 140486^2 + 57505^2 .

It is a cyclic number.

It is not a de Polignac number, because 23043141221 - 2² = 23043141217 is a prime.

Together with 23043141223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23043141223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11521570610 + 11521570611.

It is an arithmetic number, because the mean of its divisors is an integer number (11521570611).

Almost surely, 2^23043141221 is an apocalyptic number.

It is an amenable number.

23043141221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23043141221 is an equidigital number, since it uses as much as digits as its factorization.

23043141221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 23043141221 its reverse (12214134032), we get a palindrome (35257275253).

The spelling of 23043141221 in words is "twenty-three billion, forty-three million, one hundred forty-one thousand, two hundred twenty-one".