30011213 has 4 divisors (see below), whose sum is σ = 30302688. Its totient is φ = 29719740.

The previous prime is 30011161. The next prime is 30011269. The reversal of 30011213 is 31211003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30011213 - 2¹⁶ = 29945677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30011194 and 30011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30010213) 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, 145583 + ... + 145788.

It is an arithmetic number, because the mean of its divisors is an integer number (7575672).

Almost surely, 2^30011213 is an apocalyptic number.

It is an amenable number.

30011213 is a deficient number, since it is larger than the sum of its proper divisors (291475).

30011213 is a wasteful number, since it uses less digits than its factorization.

30011213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291474.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 30011213 is about 5478.2490815953. The cubic root of 30011213 is about 310.7619584378.

Adding to 30011213 its reverse (31211003), we get a palindrome (61222216).

The spelling of 30011213 in words is "thirty million, eleven thousand, two hundred thirteen".