30523313 has 12 divisors (see below), whose sum is σ = 33480192. Its totient is φ = 27792960.

The previous prime is 30523301. The next prime is 30523327. The reversal of 30523313 is 31332503.

It is not a de Polignac number, because 30523313 - 2¹² = 30519217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30523343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7256 + ... + 10662.

It is an arithmetic number, because the mean of its divisors is an integer number (2790016).

Almost surely, 2^30523313 is an apocalyptic number.

It is an amenable number.

30523313 is a deficient number, since it is larger than the sum of its proper divisors (2956879).

30523313 is a wasteful number, since it uses less digits than its factorization.

30523313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472 (or 3455 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 30523313 is about 5524.7907652689. The cubic root of 30523313 is about 312.5195738139.

Subtracting from 30523313 its product of nonzero digits (810), we obtain a palindrome (30522503).

Adding to 30523313 its reverse (31332503), we get a palindrome (61855816).

The spelling of 30523313 in words is "thirty million, five hundred twenty-three thousand, three hundred thirteen".