230015511 has 16 divisors (see below), whose sum is σ = 371742720. Its totient is φ = 139403160.

The previous prime is 230015507. The next prime is 230015551. The reversal of 230015511 is 115510032.

It is not a de Polignac number, because 230015511 - 2² = 230015507 is a prime.

It is a super-2 number, since 2×230015511² = 105814270601182242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230015551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386935 + ... + 387528.

It is an arithmetic number, because the mean of its divisors is an integer number (23233920).

Almost surely, 2^230015511 is an apocalyptic number.

230015511 is a deficient number, since it is larger than the sum of its proper divisors (141727209).

230015511 is a wasteful number, since it uses less digits than its factorization.

230015511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774483 (or 774477 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 230015511 is about 15166.2622620077. The cubic root of 230015511 is about 612.7063403646.

Adding to 230015511 its reverse (115510032), we get a palindrome (345525543).

The spelling of 230015511 in words is "two hundred thirty million, fifteen thousand, five hundred eleven".