203230311344 has 80 divisors (see below), whose sum is σ = 422786273280. Its totient is φ = 94356783360.

The previous prime is 203230311331. The next prime is 203230311371. The reversal of 203230311344 is 443113032302.

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, 3172754 + ... + 3236174.

It is an arithmetic number, because the mean of its divisors is an integer number (5284828416).

Almost surely, 2^203230311344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203230311344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211393136640).

203230311344 is an abundant number, since it is smaller than the sum of its proper divisors (219555961936).

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

203230311344 is a wasteful number, since it uses less digits than its factorization.

203230311344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63658 (or 63652 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 203230311344 its reverse (443113032302), we get a palindrome (646343343646).

The spelling of 203230311344 in words is "two hundred three billion, two hundred thirty million, three hundred eleven thousand, three hundred forty-four".