231073130 has 16 divisors (see below), whose sum is σ = 426077064. Its totient is φ = 90174720.

The previous prime is 231073049. The next prime is 231073147. The reversal of 231073130 is 31370132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 62047129 + 169026001 = 7877^2 + 13001^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281387 + ... + 282206.

Almost surely, 2^231073130 is an apocalyptic number.

231073130 is a deficient number, since it is larger than the sum of its proper divisors (195003934).

231073130 is a wasteful number, since it uses less digits than its factorization.

231073130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563641.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 231073130 is about 15201.0897635663. The cubic root of 231073130 is about 613.6439861247.

The spelling of 231073130 in words is "two hundred thirty-one million, seventy-three thousand, one hundred thirty".