30523423 has 6 divisors (see below), whose sum is σ = 35506896. Its totient is φ = 26162892.

The previous prime is 30523403. The next prime is 30523429. The reversal of 30523423 is 32432503.

It is a de Polignac number, because none of the positive numbers 2^k-30523423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30523394 and 30523403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30523429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311415 + ... + 311512.

It is an arithmetic number, because the mean of its divisors is an integer number (5917816).

Almost surely, 2^30523423 is an apocalyptic number.

30523423 is a deficient number, since it is larger than the sum of its proper divisors (4983473).

30523423 is an equidigital number, since it uses as much as digits as its factorization.

30523423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622941 (or 622934 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 30523423 is about 5524.8007203880. The cubic root of 30523423 is about 312.5199492331.

Adding to 30523423 its reverse (32432503), we get a palindrome (62955926).

The spelling of 30523423 in words is "thirty million, five hundred twenty-three thousand, four hundred twenty-three".