231131010 has 128 divisors (see below), whose sum is σ = 643645440. Its totient is φ = 52531200.

The previous prime is 231130973. The next prime is 231131041. The reversal of 231131010 is 10131132.

231131010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1197474 + ... + 1197666.

It is an arithmetic number, because the mean of its divisors is an integer number (5028480).

Almost surely, 2^231131010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231131010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321822720).

231131010 is an abundant number, since it is smaller than the sum of its proper divisors (412514430).

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

231131010 is a wasteful number, since it uses less digits than its factorization.

231131010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 231131010 is about 15202.9934552377. The cubic root of 231131010 is about 613.6952177396.

Adding to 231131010 its reverse (10131132), we get a palindrome (241262142).

The spelling of 231131010 in words is "two hundred thirty-one million, one hundred thirty-one thousand, ten".