203031422320 has 40 divisors (see below), whose sum is σ = 487275419520. Its totient is φ = 78592807680.

The previous prime is 203031422317. The next prime is 203031422357. The reversal of 203031422320 is 23224130302.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 203031422291 and 203031422300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40931275 + ... + 40936234.

It is an arithmetic number, because the mean of its divisors is an integer number (12181885488).

Almost surely, 2^203031422320 is an apocalyptic number.

203031422320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203031422320 is an abundant number, since it is smaller than the sum of its proper divisors (284243997200).

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

203031422320 is a wasteful number, since it uses less digits than its factorization.

203031422320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81867553 (or 81867547 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 203031422320 its reverse (23224130302), we get a palindrome (226255552622).

The spelling of 203031422320 in words is "two hundred three billion, thirty-one million, four hundred twenty-two thousand, three hundred twenty".