231544201215 has 8 divisors (see below), whose sum is σ = 370470721968. Its totient is φ = 123490240640.

The previous prime is 231544201199. The next prime is 231544201289. The reversal of 231544201215 is 512102445132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231544201215 - 2⁴ = 231544201199 is a prime.

It is a super-2 number, since 2×231544201215² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 7718140026 + ... + 7718140055.

It is an arithmetic number, because the mean of its divisors is an integer number (46308840246).

Almost surely, 2^231544201215 is an apocalyptic number.

231544201215 is a deficient number, since it is larger than the sum of its proper divisors (138926520753).

231544201215 is a wasteful number, since it uses less digits than its factorization.

231544201215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15436280089.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 231544201215 its reverse (512102445132), we get a palindrome (743646646347).

The spelling of 231544201215 in words is "two hundred thirty-one billion, five hundred forty-four million, two hundred one thousand, two hundred fifteen".