230203101440 has 144 divisors (see below), whose sum is σ = 596941664256. Its totient is φ = 84551884800.

The previous prime is 230203101421. The next prime is 230203101461. The reversal of 230203101440 is 44101302032.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3142025 + ... + 3214455.

It is an arithmetic number, because the mean of its divisors is an integer number (4145428224).

Almost surely, 2^230203101440 is an apocalyptic number.

230203101440 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 230203101440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298470832128).

230203101440 is an abundant number, since it is smaller than the sum of its proper divisors (366738562816).

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

230203101440 is a wasteful number, since it uses less digits than its factorization.

230203101440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72656 (or 72642 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 230203101440 its reverse (44101302032), we get a palindrome (274304403472).

The spelling of 230203101440 in words is "two hundred thirty billion, two hundred three million, one hundred one thousand, four hundred forty".