30213011 has 2 divisors, whose sum is σ = 30213012. Its totient is φ = 30213010.

The previous prime is 30212999. The next prime is 30213013. The reversal of 30213011 is 11031203.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30213011 is a prime.

It is a super-2 number, since 2×30213011² = 1825652067372242, which contains 22 as substring.

Together with 30213013, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30212983 and 30213001.

It is not a weakly prime, because it can be changed into another prime (30213013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106505 + 15106506.

It is an arithmetic number, because the mean of its divisors is an integer number (15106506).

Almost surely, 2^30213011 is an apocalyptic number.

30213011 is a deficient number, since it is larger than the sum of its proper divisors (1).

30213011 is an equidigital number, since it uses as much as digits as its factorization.

30213011 is an evil number, because the sum of its binary digits is even.

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

The square root of 30213011 is about 5496.6363350689. The cubic root of 30213011 is about 311.4569331908.

Adding to 30213011 its reverse (11031203), we get a palindrome (41244214).

The spelling of 30213011 in words is "thirty million, two hundred thirteen thousand, eleven".