231233030 has 128 divisors (see below), whose sum is σ = 529514496. Its totient is φ = 70963200.

The previous prime is 231233029. The next prime is 231233039. The reversal of 231233030 is 30332132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231233039) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2046254 + ... + 2046366.

It is an arithmetic number, because the mean of its divisors is an integer number (4136832).

Almost surely, 2^231233030 is an apocalyptic number.

231233030 is an abundant number, since it is smaller than the sum of its proper divisors (298281466).

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

231233030 is a wasteful number, since it uses less digits than its factorization.

231233030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 231233030 is about 15206.3483453458. The cubic root of 231233030 is about 613.7854983941.

Adding to 231233030 its reverse (30332132), we get a palindrome (261565162).

The spelling of 231233030 in words is "two hundred thirty-one million, two hundred thirty-three thousand, thirty".