232531400215 has 16 divisors (see below), whose sum is σ = 280382973696. Its totient is φ = 185128819200.

The previous prime is 232531400209. The next prime is 232531400219. The reversal of 232531400215 is 512004135232.

It is a de Polignac number, because none of the positive numbers 2^k-232531400215 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232531400219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3446505 + ... + 3513325.

It is an arithmetic number, because the mean of its divisors is an integer number (17523935856).

Almost surely, 2^232531400215 is an apocalyptic number.

232531400215 is a deficient number, since it is larger than the sum of its proper divisors (47851573481).

232531400215 is a wasteful number, since it uses less digits than its factorization.

232531400215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70170.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 232531400215 its reverse (512004135232), we get a palindrome (744535535447).

The spelling of 232531400215 in words is "two hundred thirty-two billion, five hundred thirty-one million, four hundred thousand, two hundred fifteen".