201133454621 has 8 divisors (see below), whose sum is σ = 219425456064. Its totient is φ = 182842643520.

The previous prime is 201133454569. The next prime is 201133454629. The reversal of 201133454621 is 126454331102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201133454621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201133454629) 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 7 ways as a sum of consecutive naturals, for example, 76136 + ... + 638798.

It is an arithmetic number, because the mean of its divisors is an integer number (27428182008).

Almost surely, 2^201133454621 is an apocalyptic number.

It is an amenable number.

201133454621 is a deficient number, since it is larger than the sum of its proper divisors (18292001443).

201133454621 is a wasteful number, since it uses less digits than its factorization.

201133454621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595171.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 201133454621 its reverse (126454331102), we get a palindrome (327587785723).

The spelling of 201133454621 in words is "two hundred one billion, one hundred thirty-three million, four hundred fifty-four thousand, six hundred twenty-one".