30405331423 has 4 divisors (see below), whose sum is σ = 30609394200. Its totient is φ = 30201268648.

The previous prime is 30405331421. The next prime is 30405331501. The reversal of 30405331423 is 32413350403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30405331423 - 2¹ = 30405331421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30405331391 and 30405331400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30405331421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102031165 + ... + 102031462.

It is an arithmetic number, because the mean of its divisors is an integer number (7652348550).

Almost surely, 2^30405331423 is an apocalyptic number.

30405331423 is a deficient number, since it is larger than the sum of its proper divisors (204062777).

30405331423 is a wasteful number, since it uses less digits than its factorization.

30405331423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204062776.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 30405331423 its reverse (32413350403), we get a palindrome (62818681826).

The spelling of 30405331423 in words is "thirty billion, four hundred five million, three hundred thirty-one thousand, four hundred twenty-three".