230143204140 has 48 divisors (see below), whose sum is σ = 644564078592. Its totient is φ = 61355987136.

The previous prime is 230143204111. The next prime is 230143204147. The reversal of 230143204140 is 41402341032.

It is a self number, because there is not a number n which added to its sum of digits gives 230143204140.

It is not an unprimeable number, because it can be changed into a prime (230143204147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245434 + ... + 721473.

It is an arithmetic number, because the mean of its divisors is an integer number (13428418304).

Almost surely, 2^230143204140 is an apocalyptic number.

230143204140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230143204140 is an abundant number, since it is smaller than the sum of its proper divisors (414420874452).

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

230143204140 is a wasteful number, since it uses less digits than its factorization.

230143204140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970886 (or 970884 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 230143204140 its reverse (41402341032), we get a palindrome (271545545172).

The spelling of 230143204140 in words is "two hundred thirty billion, one hundred forty-three million, two hundred four thousand, one hundred forty".