231015054656 has 28 divisors (see below), whose sum is σ = 459441537300. Its totient is φ = 115250257920.

The previous prime is 231015054631. The next prime is 231015054661. The reversal of 231015054656 is 656450510132.

231015054656 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 84007225600 + 147007829056 = 289840^2 + 383416^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3990875 + ... + 4048346.

Almost surely, 2^231015054656 is an apocalyptic number.

It is an amenable number.

231015054656 is a deficient number, since it is larger than the sum of its proper divisors (228426482644).

231015054656 is an equidigital number, since it uses as much as digits as its factorization.

231015054656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8039682 (or 8039672 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

Adding to 231015054656 its reverse (656450510132), we get a palindrome (887465564788).

The spelling of 231015054656 in words is "two hundred thirty-one billion, fifteen million, fifty-four thousand, six hundred fifty-six".