201504020433121 has 16 divisors (see below), whose sum is σ = 240169740375040. Its totient is φ = 165423035427840.

The previous prime is 201504020433083. The next prime is 201504020433127. The reversal of 201504020433121 is 121334020405102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201504020433121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201504020433121.

It is not an unprimeable number, because it can be changed into a prime (201504020433127) by changing a digit.

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, 4786525116 + ... + 4786567213.

It is an arithmetic number, because the mean of its divisors is an integer number (15010608773440).

Almost surely, 2^{201504020433121} is an apocalyptic number.

It is an amenable number.

201504020433121 is a deficient number, since it is larger than the sum of its proper divisors (38665719941919).

201504020433121 is an equidigital number, since it uses as much as digits as its factorization.

201504020433121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9573092464.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 201504020433121 its reverse (121334020405102), we get a palindrome (322838040838223).

The spelling of 201504020433121 in words is "two hundred one trillion, five hundred four billion, twenty million, four hundred thirty-three thousand, one hundred twenty-one".