21312000201 has 8 divisors (see below), whose sum is σ = 28432751904. Its totient is φ = 14199624320.

The previous prime is 21312000197. The next prime is 21312000239. The reversal of 21312000201 is 10200021312.

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 21312000201 - 2² = 21312000197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21312000251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2088015 + ... + 2098196.

It is an arithmetic number, because the mean of its divisors is an integer number (3554093988).

Almost surely, 2^21312000201 is an apocalyptic number.

It is an amenable number.

21312000201 is a deficient number, since it is larger than the sum of its proper divisors (7120751703).

21312000201 is a wasteful number, since it uses less digits than its factorization.

21312000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187911.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 21312000201 its reverse (10200021312), we get a palindrome (31512021513).

The spelling of 21312000201 in words is "twenty-one billion, three hundred twelve million, two hundred one", and thus it is an aban number.