231480084820 has 24 divisors (see below), whose sum is σ = 486120232584. Its totient is φ = 92589737856.

The previous prime is 231480084817. The next prime is 231480084881. The reversal of 231480084820 is 28480084132.

231480084820 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 4 ways, for example, as 31016140996 + 200463943824 = 176114^2 + 447732^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 851422 + ... + 1089898.

It is an arithmetic number, because the mean of its divisors is an integer number (20255009691).

Almost surely, 2^231480084820 is an apocalyptic number.

231480084820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231480084820 is an abundant number, since it is smaller than the sum of its proper divisors (254640147764).

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

231480084820 is a wasteful number, since it uses less digits than its factorization.

231480084820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287019 (or 287017 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The spelling of 231480084820 in words is "two hundred thirty-one billion, four hundred eighty million, eighty-four thousand, eight hundred twenty".