231531425441015 has 8 divisors (see below), whose sum is σ = 317528812033440. Its totient is φ = 158764406016672.

The previous prime is 231531425440993. The next prime is 231531425441087. The reversal of 231531425441015 is 510144524135132.

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

It is a cyclic number.

It is not a de Polignac number, because 231531425441015 - 2¹⁴ = 231531425424631 is a prime.

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, 3307591791980 + ... + 3307591792049.

It is an arithmetic number, because the mean of its divisors is an integer number (39691101504180).

Almost surely, 2^{231531425441015} is an apocalyptic number.

231531425441015 is a deficient number, since it is larger than the sum of its proper divisors (85997386592425).

231531425441015 is an equidigital number, since it uses as much as digits as its factorization.

231531425441015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6615183584041.

The product of its (nonzero) digits is 288000, while the sum is 41.

Adding to 231531425441015 its reverse (510144524135132), we get a palindrome (741675949576147).

The spelling of 231531425441015 in words is "two hundred thirty-one trillion, five hundred thirty-one billion, four hundred twenty-five million, four hundred forty-one thousand, fifteen".