231305030 has 32 divisors (see below), whose sum is σ = 455945760. Its totient is φ = 83787520.

The previous prime is 231305027. The next prime is 231305047. The reversal of 231305030 is 30503132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25682 + ... + 33498.

It is an arithmetic number, because the mean of its divisors is an integer number (14248305).

Almost surely, 2^231305030 is an apocalyptic number.

231305030 is a deficient number, since it is larger than the sum of its proper divisors (224640730).

231305030 is a wasteful number, since it uses less digits than its factorization.

231305030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8104.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 231305030 is about 15208.7155933695. The cubic root of 231305030 is about 613.8491974395.

Adding to 231305030 its reverse (30503132), we get a palindrome (261808162).

The spelling of 231305030 in words is "two hundred thirty-one million, three hundred five thousand, thirty".