231130350 has 144 divisors (see below), whose sum is σ = 690987024. Its totient is φ = 54912000.

The previous prime is 231130343. The next prime is 231130397. The reversal of 231130350 is 53031132.

231130350 is a `hidden beast` number, since 2 + 311 + 3 + 0 + 350 = 666.

It is a super-2 number, since 2×231130350² = 106842477382245000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 261910 + ... + 262790.

It is an arithmetic number, because the mean of its divisors is an integer number (4798521).

Almost surely, 2^231130350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231130350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345493512).

231130350 is an abundant number, since it is smaller than the sum of its proper divisors (459856674).

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

231130350 is a wasteful number, since it uses less digits than its factorization.

231130350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963 (or 955 counting only the distinct ones).

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

The square root of 231130350 is about 15202.9717489707. The cubic root of 231130350 is about 613.6946335987.

Adding to 231130350 its reverse (53031132), we get a palindrome (284161482).

The spelling of 231130350 in words is "two hundred thirty-one million, one hundred thirty thousand, three hundred fifty".