230511320 has 32 divisors (see below), whose sum is σ = 558547920. Its totient is φ = 85111680.

The previous prime is 230511311. The next prime is 230511353. The reversal of 230511320 is 23115032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221126 + ... + 222165.

Almost surely, 2^230511320 is an apocalyptic number.

230511320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230511320 is an abundant number, since it is smaller than the sum of its proper divisors (328036600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230511320 is a wasteful number, since it uses less digits than its factorization.

230511320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443315 (or 443311 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 230511320 is about 15182.5992504577. The cubic root of 230511320 is about 613.1462633118.

Adding to 230511320 its reverse (23115032), we get a palindrome (253626352).

The spelling of 230511320 in words is "two hundred thirty million, five hundred eleven thousand, three hundred twenty".