201520314322 has 4 divisors (see below), whose sum is σ = 302280471486. Its totient is φ = 100760157160.

The previous prime is 201520314311. The next prime is 201520314343. The reversal of 201520314322 is 223413025102.

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., 110322958201 + 91197356121 = 332149^2 + 301989^2 .

It is a super-2 number, since 2×201520314322² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50380078579 + ... + 50380078582.

Almost surely, 2^201520314322 is an apocalyptic number.

201520314322 is a deficient number, since it is larger than the sum of its proper divisors (100760157164).

201520314322 is a wasteful number, since it uses less digits than its factorization.

201520314322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100760157163.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 201520314322 its reverse (223413025102), we get a palindrome (424933339424).

The spelling of 201520314322 in words is "two hundred one billion, five hundred twenty million, three hundred fourteen thousand, three hundred twenty-two".