231515542310145 has 8 divisors (see below), whose sum is σ = 370424867696256. Its totient is φ = 123474955898736.

The previous prime is 231515542310119. The next prime is 231515542310153. The reversal of 231515542310145 is 541013245515132.

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

It is a de Polignac number, because none of the positive numbers 2^k-231515542310145 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231515542310097 and 231515542310106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7717184743657 + ... + 7717184743686.

It is an arithmetic number, because the mean of its divisors is an integer number (46303108462032).

Almost surely, 2^{231515542310145} is an apocalyptic number.

It is an amenable number.

231515542310145 is a deficient number, since it is larger than the sum of its proper divisors (138909325386111).

231515542310145 is a wasteful number, since it uses less digits than its factorization.

231515542310145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15434369487351.

The product of its (nonzero) digits is 360000, while the sum is 42.

Adding to 231515542310145 its reverse (541013245515132), we get a palindrome (772528787825277).

The spelling of 231515542310145 in words is "two hundred thirty-one trillion, five hundred fifteen billion, five hundred forty-two million, three hundred ten thousand, one hundred forty-five".