231533531053215 has 16 divisors (see below), whose sum is σ = 370494238668288. Its totient is φ = 123471020234016.

The previous prime is 231533531053193. The next prime is 231533531053373. The reversal of 231533531053215 is 512350135335132.

It is not a de Polignac number, because 231533531053215 - 2²⁸ = 231533262617759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 845462347 + ... + 845736156.

It is an arithmetic number, because the mean of its divisors is an integer number (23155889916768).

Almost surely, 2^{231533531053215} is an apocalyptic number.

231533531053215 is a deficient number, since it is larger than the sum of its proper divisors (138960707615073).

231533531053215 is a wasteful number, since it uses less digits than its factorization.

231533531053215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691207638.

The product of its (nonzero) digits is 607500, while the sum is 42.

Adding to 231533531053215 its reverse (512350135335132), we get a palindrome (743883666388347).

The spelling of 231533531053215 in words is "two hundred thirty-one trillion, five hundred thirty-three billion, five hundred thirty-one million, fifty-three thousand, two hundred fifteen".