30123232 has 12 divisors (see below), whose sum is σ = 59305176. Its totient is φ = 15061600.

The previous prime is 30123229. The next prime is 30123251. The reversal of 30123232 is 23232103.

It is a super-2 number, since 2×30123232² = 1814818212251648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470644 + ... + 470707.

It is an arithmetic number, because the mean of its divisors is an integer number (4942098).

Almost surely, 2^30123232 is an apocalyptic number.

30123232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30123232 is a deficient number, since it is larger than the sum of its proper divisors (29181944).

30123232 is an equidigital number, since it uses as much as digits as its factorization.

30123232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941361 (or 941353 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30123232 is about 5488.4635372753. The cubic root of 30123232 is about 311.1481254524.

Adding to 30123232 its reverse (23232103), we get a palindrome (53355335).

The spelling of 30123232 in words is "thirty million, one hundred twenty-three thousand, two hundred thirty-two".