30440401223 has 2 divisors, whose sum is σ = 30440401224. Its totient is φ = 30440401222.

The previous prime is 30440401219. The next prime is 30440401247. The reversal of 30440401223 is 32210404403.

It is a weak prime.

It is an emirp because it is prime and its reverse (32210404403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30440401223 - 2² = 30440401219 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30440401253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15220200611 + 15220200612.

It is an arithmetic number, because the mean of its divisors is an integer number (15220200612).

Almost surely, 2^30440401223 is an apocalyptic number.

30440401223 is a deficient number, since it is larger than the sum of its proper divisors (1).

30440401223 is an equidigital number, since it uses as much as digits as its factorization.

30440401223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 30440401223 its reverse (32210404403), we get a palindrome (62650805626).

The spelling of 30440401223 in words is "thirty billion, four hundred forty million, four hundred one thousand, two hundred twenty-three".