30823231 has 2 divisors, whose sum is σ = 30823232. Its totient is φ = 30823230.

The previous prime is 30823223. The next prime is 30823241. The reversal of 30823231 is 13232803.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30823231 - 2³ = 30823223 is a prime.

It is a super-2 number, since 2×30823231² = 1900143138558722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30823241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15411615 + 15411616.

It is an arithmetic number, because the mean of its divisors is an integer number (15411616).

Almost surely, 2^30823231 is an apocalyptic number.

30823231 is a deficient number, since it is larger than the sum of its proper divisors (1).

30823231 is an equidigital number, since it uses as much as digits as its factorization.

30823231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 30823231 is about 5551.8673435161. The cubic root of 30823231 is about 313.5398313117.

The spelling of 30823231 in words is "thirty million, eight hundred twenty-three thousand, two hundred thirty-one".