231820430382 has 40 divisors (see below), whose sum is σ = 526565256096. Its totient is φ = 76214932128.

The previous prime is 231820430353. The next prime is 231820430389. The reversal of 231820430382 is 283034028132.

231820430382 is a `hidden beast` number, since 231 + 8 + 2 + 0 + 43 + 0 + 382 = 666.

It is a super-3 number, since 3×231820430382³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231820430389) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9789478 + ... + 9813129.

Almost surely, 2^231820430382 is an apocalyptic number.

231820430382 is an abundant number, since it is smaller than the sum of its proper divisors (294744825714).

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

231820430382 is a wasteful number, since it uses less digits than its factorization.

231820430382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19602694 (or 19602685 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 231820430382 in words is "two hundred thirty-one billion, eight hundred twenty million, four hundred thirty thousand, three hundred eighty-two".