20112320443 has 2 divisors, whose sum is σ = 20112320444. Its totient is φ = 20112320442.

The previous prime is 20112320419. The next prime is 20112320453. The reversal of 20112320443 is 34402321102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20112320443 - 2¹³ = 20112312251 is a prime.

It is not a weakly prime, because it can be changed into another prime (20112320453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056160221 + 10056160222.

It is an arithmetic number, because the mean of its divisors is an integer number (10056160222).

Almost surely, 2^20112320443 is an apocalyptic number.

20112320443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112320443 is an equidigital number, since it uses as much as digits as its factorization.

20112320443 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 22.

Adding to 20112320443 its reverse (34402321102), we get a palindrome (54514641545).

The spelling of 20112320443 in words is "twenty billion, one hundred twelve million, three hundred twenty thousand, four hundred forty-three".