201320310122 has 4 divisors (see below), whose sum is σ = 301980465186. Its totient is φ = 100660155060.

The previous prime is 201320310109. The next prime is 201320310187. The reversal of 201320310122 is 221013023102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 193662485041 + 7657825081 = 440071^2 + 87509^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 201320310122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50330077529 + ... + 50330077532.

Almost surely, 2^201320310122 is an apocalyptic number.

201320310122 is a deficient number, since it is larger than the sum of its proper divisors (100660155064).

201320310122 is a wasteful number, since it uses less digits than its factorization.

201320310122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100660155063.

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

Adding to 201320310122 its reverse (221013023102), we get a palindrome (422333333224).

The spelling of 201320310122 in words is "two hundred one billion, three hundred twenty million, three hundred ten thousand, one hundred twenty-two".