201011320 has 32 divisors (see below), whose sum is σ = 453776400. Its totient is φ = 80137728.

The previous prime is 201011303. The next prime is 201011333. The reversal of 201011320 is 23110102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 201011297 and 201011306.

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, 4096 + ... + 20464.

Almost surely, 2^201011320 is an apocalyptic number.

201011320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201011320 is an abundant number, since it is smaller than the sum of its proper divisors (252765080).

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

201011320 is a wasteful number, since it uses less digits than its factorization.

201011320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16687 (or 16683 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 201011320 is about 14177.8460987556. The cubic root of 201011320 is about 585.7875967271.

Adding to 201011320 its reverse (23110102), we get a palindrome (224121422).

The spelling of 201011320 in words is "two hundred one million, eleven thousand, three hundred twenty".