231002329256 has 32 divisors (see below), whose sum is σ = 443625336000. Its totient is φ = 112707369600.

The previous prime is 231002329231. The next prime is 231002329297. The reversal of 231002329256 is 652923200132.

231002329256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231002329256² (a number of 24 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 40781 + ... + 680931.

It is an arithmetic number, because the mean of its divisors is an integer number (13863291750).

Almost surely, 2^231002329256 is an apocalyptic number.

It is an amenable number.

231002329256 is a deficient number, since it is larger than the sum of its proper divisors (212623006744).

231002329256 is a wasteful number, since it uses less digits than its factorization.

231002329256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641249 (or 641245 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

Adding to 231002329256 its reverse (652923200132), we get a palindrome (883925529388).

The spelling of 231002329256 in words is "two hundred thirty-one billion, two million, three hundred twenty-nine thousand, two hundred fifty-six".