230235137140 has 72 divisors (see below), whose sum is σ = 509230219680. Its totient is φ = 87410929536.

The previous prime is 230235137131. The next prime is 230235137147. The reversal of 230235137140 is 41731532032.

230235137140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230235137147) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 876379 + ... + 1108381.

It is an arithmetic number, because the mean of its divisors is an integer number (7072641940).

Almost surely, 2^230235137140 is an apocalyptic number.

230235137140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230235137140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254615109840).

230235137140 is an abundant number, since it is smaller than the sum of its proper divisors (278995082540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230235137140 is a wasteful number, since it uses less digits than its factorization.

230235137140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232129 (or 232098 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

Adding to 230235137140 its reverse (41731532032), we get a palindrome (271966669172).

The spelling of 230235137140 in words is "two hundred thirty billion, two hundred thirty-five million, one hundred thirty-seven thousand, one hundred forty".