21333120113 has 8 divisors (see below), whose sum is σ = 21905332800. Its totient is φ = 20767928688.

The previous prime is 21333120101. The next prime is 21333120121. The reversal of 21333120113 is 31102133312.

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 21333120113 - 2⁴ = 21333120097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21333120013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1749158 + ... + 1761311.

It is an arithmetic number, because the mean of its divisors is an integer number (2738166600).

Almost surely, 2^21333120113 is an apocalyptic number.

It is an amenable number.

21333120113 is a deficient number, since it is larger than the sum of its proper divisors (572212687).

21333120113 is a wasteful number, since it uses less digits than its factorization.

21333120113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3510631.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21333120113 its reverse (31102133312), we get a palindrome (52435253425).

The spelling of 21333120113 in words is "twenty-one billion, three hundred thirty-three million, one hundred twenty thousand, one hundred thirteen".