201323012210 has 32 divisors (see below), whose sum is σ = 383720347440. Its totient is φ = 75787773952.

The previous prime is 201323012179. The next prime is 201323012221. The reversal of 201323012210 is 12210323102.

It can be written as a sum of positive squares in 8 ways, for example, as 25533163681 + 175789848529 = 159791^2 + 419273^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5382092 + ... + 5419368.

Almost surely, 2^201323012210 is an apocalyptic number.

201323012210 is a deficient number, since it is larger than the sum of its proper divisors (182397335230).

201323012210 is a wasteful number, since it uses less digits than its factorization.

201323012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69070.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 201323012210 its reverse (12210323102), we get a palindrome (213533335312).

The spelling of 201323012210 in words is "two hundred one billion, three hundred twenty-three million, twelve thousand, two hundred ten".