20144132321 has 2 divisors, whose sum is σ = 20144132322. Its totient is φ = 20144132320.

The previous prime is 20144132293. The next prime is 20144132339. The reversal of 20144132321 is 12323144102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12844822225 + 7299310096 = 113335^2 + 85436^2 .

It is a cyclic number.

It is not a de Polignac number, because 20144132321 - 2²⁶ = 20077023457 is a prime.

It is not a weakly prime, because it can be changed into another prime (20144132621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10072066160 + 10072066161.

It is an arithmetic number, because the mean of its divisors is an integer number (10072066161).

Almost surely, 2^20144132321 is an apocalyptic number.

It is an amenable number.

20144132321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20144132321 is an equidigital number, since it uses as much as digits as its factorization.

20144132321 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 20144132321 its reverse (12323144102), we get a palindrome (32467276423).

The spelling of 20144132321 in words is "twenty billion, one hundred forty-four million, one hundred thirty-two thousand, three hundred twenty-one".