21153113201 has 8 divisors (see below), whose sum is σ = 23077245600. Its totient is φ = 19229167840.

The previous prime is 21153113161. The next prime is 21153113203. The reversal of 21153113201 is 10231135112.

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 21153113201 - 2¹⁴ = 21153096817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21153113203) 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, 304445 + ... + 367413.

It is an arithmetic number, because the mean of its divisors is an integer number (2884655700).

Almost surely, 2^21153113201 is an apocalyptic number.

It is an amenable number.

21153113201 is a deficient number, since it is larger than the sum of its proper divisors (1924132399).

21153113201 is a wasteful number, since it uses less digits than its factorization.

21153113201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93519.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 21153113201 its reverse (10231135112), we get a palindrome (31384248313).

The spelling of 21153113201 in words is "twenty-one billion, one hundred fifty-three million, one hundred thirteen thousand, two hundred one".