203342321140 has 96 divisors (see below), whose sum is σ = 491698932480. Its totient is φ = 69193073664.

The previous prime is 203342321137. The next prime is 203342321141. The reversal of 203342321140 is 41123243302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203342321141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20810176 + ... + 20819944.

It is an arithmetic number, because the mean of its divisors is an integer number (5121863880).

Almost surely, 2^203342321140 is an apocalyptic number.

203342321140 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 203342321140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245849466240).

203342321140 is an abundant number, since it is smaller than the sum of its proper divisors (288356611340).

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

203342321140 is a wasteful number, since it uses less digits than its factorization.

203342321140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10889 (or 10887 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 203342321140 its reverse (41123243302), we get a palindrome (244465564442).

The spelling of 203342321140 in words is "two hundred three billion, three hundred forty-two million, three hundred twenty-one thousand, one hundred forty".