231130835860 has 48 divisors (see below), whose sum is σ = 497377983312. Its totient is φ = 90167500800.

The previous prime is 231130835849. The next prime is 231130835869. The reversal of 231130835860 is 68538031132.

231130835860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 187868499844 + 43262336016 = 433438^2 + 207996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231130835869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2514064 + ... + 2604376.

It is an arithmetic number, because the mean of its divisors is an integer number (10362041319).

Almost surely, 2^231130835860 is an apocalyptic number.

231130835860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231130835860 is an abundant number, since it is smaller than the sum of its proper divisors (266247147452).

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

231130835860 is a wasteful number, since it uses less digits than its factorization.

231130835860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93484 (or 93482 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

Adding to 231130835860 its reverse (68538031132), we get a palindrome (299668866992).

The spelling of 231130835860 in words is "two hundred thirty-one billion, one hundred thirty million, eight hundred thirty-five thousand, eight hundred sixty".