21113323201 has 8 divisors (see below), whose sum is σ = 21267118080. Its totient is φ = 20959986432.

The previous prime is 21113323157. The next prime is 21113323207. The reversal of 21113323201 is 10232331112.

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 21113323201 - 2⁹ = 21113322689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21113323207) 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, 21745 + ... + 206638.

It is an arithmetic number, because the mean of its divisors is an integer number (2658389760).

Almost surely, 2^21113323201 is an apocalyptic number.

It is an amenable number.

21113323201 is a deficient number, since it is larger than the sum of its proper divisors (153794879).

21113323201 is a wasteful number, since it uses less digits than its factorization.

21113323201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229055.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21113323201 its reverse (10232331112), we get a palindrome (31345654313).

The spelling of 21113323201 in words is "twenty-one billion, one hundred thirteen million, three hundred twenty-three thousand, two hundred one".