30002231 has 4 divisors (see below), whose sum is σ = 34288272. Its totient is φ = 25716192.

The previous prime is 30002207. The next prime is 30002233. The reversal of 30002231 is 13220003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30002231 is a prime.

It is a super-2 number, since 2×30002231² = 1800267729954722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30002233) 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, 2143010 + ... + 2143023.

It is an arithmetic number, because the mean of its divisors is an integer number (8572068).

Almost surely, 2^30002231 is an apocalyptic number.

30002231 is a deficient number, since it is larger than the sum of its proper divisors (4286041).

30002231 is an equidigital number, since it uses as much as digits as its factorization.

30002231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286040.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 30002231 is about 5477.4292327697. The cubic root of 30002231 is about 310.7309528886.

Adding to 30002231 its reverse (13220003), we get a palindrome (43222234).

The spelling of 30002231 in words is "thirty million, two thousand, two hundred thirty-one".