305013231 has 12 divisors (see below), whose sum is σ = 446780880. Its totient is φ = 200477760.

The previous prime is 305013211. The next prime is 305013239. The reversal of 305013231 is 132310503.

It is not a de Polignac number, because 305013231 - 2²⁶ = 237904367 is a prime.

It is a super-2 number, since 2×305013231² = 186066142170118722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305013239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238026 + ... + 239303.

It is an arithmetic number, because the mean of its divisors is an integer number (37231740).

Almost surely, 2^305013231 is an apocalyptic number.

305013231 is a deficient number, since it is larger than the sum of its proper divisors (141767649).

305013231 is a wasteful number, since it uses less digits than its factorization.

305013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477406 (or 477403 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 305013231 is about 17464.6279948930. The cubic root of 305013231 is about 673.1412831416.

Adding to 305013231 its reverse (132310503), we get a palindrome (437323734).

The spelling of 305013231 in words is "three hundred five million, thirteen thousand, two hundred thirty-one".