30423023505 has 96 divisors (see below), whose sum is σ = 62667491328. Its totient is φ = 13360204800.

The previous prime is 30423023503. The next prime is 30423023507. The reversal of 30423023505 is 50532032403.

30423023505 is a `hidden beast` number, since 3 + 0 + 4 + 2 + 302 + 350 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (30423023503) and next prime (30423023507).

It is not a de Polignac number, because 30423023505 - 2¹ = 30423023503 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30423023503) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1326435 + ... + 1349175.

It is an arithmetic number, because the mean of its divisors is an integer number (652786368).

Almost surely, 2^30423023505 is an apocalyptic number.

30423023505 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30423023505 is an abundant number, since it is smaller than the sum of its proper divisors (32244467823).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30423023505 is a wasteful number, since it uses less digits than its factorization.

30423023505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22927 (or 22924 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

Adding to 30423023505 its reverse (50532032403), we get a palindrome (80955055908).

The spelling of 30423023505 in words is "thirty billion, four hundred twenty-three million, twenty-three thousand, five hundred five".