30440444423 has 2 divisors, whose sum is σ = 30440444424. Its totient is φ = 30440444422.

The previous prime is 30440444401. The next prime is 30440444449. The reversal of 30440444423 is 32444404403.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30440444423 - 2¹⁶ = 30440378887 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30440444423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30440440423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15220222211 + 15220222212.

It is an arithmetic number, because the mean of its divisors is an integer number (15220222212).

Almost surely, 2^30440444423 is an apocalyptic number.

30440444423 is a deficient number, since it is larger than the sum of its proper divisors (1).

30440444423 is an equidigital number, since it uses as much as digits as its factorization.

30440444423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 30440444423 its reverse (32444404403), we get a palindrome (62884848826).

The spelling of 30440444423 in words is "thirty billion, four hundred forty million, four hundred forty-four thousand, four hundred twenty-three".