230311556242581 has 48 divisors (see below), whose sum is σ = 345613743820800. Its totient is φ = 136280719898400.

The previous prime is 230311556242567. The next prime is 230311556242693. The reversal of 230311556242581 is 185242655113032.

It is not a de Polignac number, because 230311556242581 - 2¹¹ = 230311556240533 is a prime.

It is a super-2 number, since 2×230311556242581² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 230311556242581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230311556242561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40724781 + ... + 46034018.

It is an arithmetic number, because the mean of its divisors is an integer number (7200286329600).

Almost surely, 2^{230311556242581} is an apocalyptic number.

It is an amenable number.

230311556242581 is a deficient number, since it is larger than the sum of its proper divisors (115302187578219).

230311556242581 is a wasteful number, since it uses less digits than its factorization.

230311556242581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86758998 (or 86758987 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 230311556242581 in words is "two hundred thirty trillion, three hundred eleven billion, five hundred fifty-six million, two hundred forty-two thousand, five hundred eighty-one".