201321353331155 has 16 divisors (see below), whose sum is σ = 244036142025984. Its totient is φ = 159431277132000.

The previous prime is 201321353331101. The next prime is 201321353331169. The reversal of 201321353331155 is 551133353123102.

It is a de Polignac number, because none of the positive numbers 2^k-201321353331155 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491867279 + ... + 492276408.

It is an arithmetic number, because the mean of its divisors is an integer number (15252258876624).

Almost surely, 2^{201321353331155} is an apocalyptic number.

201321353331155 is a deficient number, since it is larger than the sum of its proper divisors (42714788694829).

201321353331155 is a wasteful number, since it uses less digits than its factorization.

201321353331155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984144106.

The product of its (nonzero) digits is 121500, while the sum is 38.

The spelling of 201321353331155 in words is "two hundred one trillion, three hundred twenty-one billion, three hundred fifty-three million, three hundred thirty-one thousand, one hundred fifty-five".