201310020320 has 48 divisors (see below), whose sum is σ = 488448854208. Its totient is φ = 78347681280.

The previous prime is 201310020319. The next prime is 201310020341. The reversal of 201310020320 is 23020013102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201310020295 and 201310020304.

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, 16996616 + ... + 17008455.

It is an arithmetic number, because the mean of its divisors is an integer number (10176017796).

Almost surely, 2^201310020320 is an apocalyptic number.

201310020320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201310020320 is an abundant number, since it is smaller than the sum of its proper divisors (287138833888).

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

201310020320 is a wasteful number, since it uses less digits than its factorization.

201310020320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34005123 (or 34005115 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 201310020320 its reverse (23020013102), we get a palindrome (224330033422).

The spelling of 201310020320 in words is "two hundred one billion, three hundred ten million, twenty thousand, three hundred twenty".