21021201332013 has 8 divisors (see below), whose sum is σ = 28030635942400. Its totient is φ = 14012950471488.

The previous prime is 21021201332009. The next prime is 21021201332039. The reversal of 21021201332013 is 31023310212012.

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

It is not a de Polignac number, because 21021201332013 - 2² = 21021201332009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21021201330013) 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, 295896028 + ... + 295967061.

It is an arithmetic number, because the mean of its divisors is an integer number (3503829492800).

Almost surely, 2^{21021201332013} is an apocalyptic number.

It is an amenable number.

21021201332013 is a deficient number, since it is larger than the sum of its proper divisors (7009434610387).

21021201332013 is a wasteful number, since it uses less digits than its factorization.

21021201332013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591874931.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21021201332013 its reverse (31023310212012), we get a palindrome (52044511544025).

The spelling of 21021201332013 in words is "twenty-one trillion, twenty-one billion, two hundred one million, three hundred thirty-two thousand, thirteen".