201279048321 has 64 divisors (see below), whose sum is σ = 304055571456. Its totient is φ = 117610444800.

The previous prime is 201279048317. The next prime is 201279048359. The reversal of 201279048321 is 123840972102.

It is not a de Polignac number, because 201279048321 - 2² = 201279048317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 201279048321.

It is not an unprimeable number, because it can be changed into a prime (201279048121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13595295 + ... + 13610091.

It is an arithmetic number, because the mean of its divisors is an integer number (4750868304).

Almost surely, 2^201279048321 is an apocalyptic number.

It is an amenable number.

201279048321 is a deficient number, since it is larger than the sum of its proper divisors (102776523135).

201279048321 is a wasteful number, since it uses less digits than its factorization.

201279048321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15082.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 201279048321 in words is "two hundred one billion, two hundred seventy-nine million, forty-eight thousand, three hundred twenty-one".