231242424040 has 32 divisors (see below), whose sum is σ = 520309646280. Its totient is φ = 92494446592.

The previous prime is 231242424011. The next prime is 231242424059. The reversal of 231242424040 is 40424242132.

It can be written as a sum of positive squares in 4 ways, for example, as 126526758436 + 104715665604 = 355706^2 + 323598^2 .

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, 2269224 + ... + 2368936.

Almost surely, 2^231242424040 is an apocalyptic number.

231242424040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231242424040 is an abundant number, since it is smaller than the sum of its proper divisors (289067222240).

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

231242424040 is a wasteful number, since it uses less digits than its factorization.

231242424040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157701 (or 157697 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 231242424040 its reverse (40424242132), we get a palindrome (271666666172).

The spelling of 231242424040 in words is "two hundred thirty-one billion, two hundred forty-two million, four hundred twenty-four thousand, forty".