203322420220240 has 160 divisors (see below), whose sum is σ = 502958946281472. Its totient is φ = 76324840704000.

The previous prime is 203322420220237. The next prime is 203322420220261. The reversal of 203322420220240 is 42022024223302.

It is a super-2 number, since 2×203322420220240² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203322420220199 and 203322420220208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1275994 + ... + 20205766.

Almost surely, 2^{203322420220240} is an apocalyptic number.

203322420220240 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 203322420220240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251479473140736).

203322420220240 is an abundant number, since it is smaller than the sum of its proper divisors (299636526061232).

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

203322420220240 is a wasteful number, since it uses less digits than its factorization.

203322420220240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18929949 (or 18929943 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 203322420220240 its reverse (42022024223302), we get a palindrome (245344444443542).

The spelling of 203322420220240 in words is "two hundred three trillion, three hundred twenty-two billion, four hundred twenty million, two hundred twenty thousand, two hundred forty".