21001231300333 has 8 divisors (see below), whose sum is σ = 21476498263200. Its totient is φ = 20529941467248.

The previous prime is 21001231300321. The next prime is 21001231300351. The reversal of 21001231300333 is 33300313210012.

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 21001231300333 - 2¹³ = 21001231292141 is a prime.

It is a super-2 number, since 2×21001231300333² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21001231300303) 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, 994271766 + ... + 994292887.

It is an arithmetic number, because the mean of its divisors is an integer number (2684562282900).

Almost surely, 2^{21001231300333} is an apocalyptic number.

It is an amenable number.

21001231300333 is a deficient number, since it is larger than the sum of its proper divisors (475266962867).

21001231300333 is a wasteful number, since it uses less digits than its factorization.

21001231300333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988564891.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 21001231300333 its reverse (33300313210012), we get a palindrome (54301544510345).

The spelling of 21001231300333 in words is "twenty-one trillion, one billion, two hundred thirty-one million, three hundred thousand, three hundred thirty-three".