201321010 has 48 divisors (see below), whose sum is σ = 400276800. Its totient is φ = 72848160.

The previous prime is 201321007. The next prime is 201321011. The reversal of 201321010 is 10123102.

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

It is not an unprimeable number, because it can be changed into a prime (201321011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 458371 + ... + 458809.

It is an arithmetic number, because the mean of its divisors is an integer number (8339100).

Almost surely, 2^201321010 is an apocalyptic number.

201321010 is a deficient number, since it is larger than the sum of its proper divisors (198955790).

201321010 is a wasteful number, since it uses less digits than its factorization.

201321010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 836 counting only the distinct ones).

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

The square root of 201321010 is about 14188.7635120189. The cubic root of 201321010 is about 586.0882754410.

Adding to 201321010 its reverse (10123102), we get a palindrome (211444112).

The spelling of 201321010 in words is "two hundred one million, three hundred twenty-one thousand, ten".