231247030 has 32 divisors (see below), whose sum is σ = 480626496. Its totient is φ = 78465024.

The previous prime is 231247007. The next prime is 231247031. The reversal of 231247030 is 30742132.

231247030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231246992 and 231247010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231247031) 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, 10239 + ... + 23818.

It is an arithmetic number, because the mean of its divisors is an integer number (15019578).

Almost surely, 2^231247030 is an apocalyptic number.

231247030 is an abundant number, since it is smaller than the sum of its proper divisors (249379466).

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

231247030 is a wasteful number, since it uses less digits than its factorization.

231247030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34168.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 231247030 is about 15206.8086724335. The cubic root of 231247030 is about 613.7978853551.

Adding to 231247030 its reverse (30742132), we get a palindrome (261989162).

The spelling of 231247030 in words is "two hundred thirty-one million, two hundred forty-seven thousand, thirty".