21201107153 has 8 divisors (see below), whose sum is σ = 21538353600. Its totient is φ = 20864934160.

The previous prime is 21201107131. The next prime is 21201107197. The reversal of 21201107153 is 35170110212.

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

It is a cyclic number.

It is not a de Polignac number, because 21201107153 - 2⁸ = 21201106897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21201107353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228503 + ... + 307596.

It is an arithmetic number, because the mean of its divisors is an integer number (2692294200).

Almost surely, 2^21201107153 is an apocalyptic number.

It is an amenable number.

21201107153 is a deficient number, since it is larger than the sum of its proper divisors (337246447).

21201107153 is an equidigital number, since it uses as much as digits as its factorization.

21201107153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536727.

The product of its (nonzero) digits is 420, while the sum is 23.

Adding to 21201107153 its reverse (35170110212), we get a palindrome (56371217365).

The spelling of 21201107153 in words is "twenty-one billion, two hundred one million, one hundred seven thousand, one hundred fifty-three".