21333213003313 has 16 divisors (see below), whose sum is σ = 22564940751360. Its totient is φ = 20138602478400.

The previous prime is 21333213003287. The next prime is 21333213003331. The reversal of 21333213003313 is 31330031233312.

It is a cyclic number.

It is not a de Polignac number, because 21333213003313 - 2¹³ = 21333212995121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21333213003383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35810793 + ... + 36401638.

It is an arithmetic number, because the mean of its divisors is an integer number (1410308796960).

Almost surely, 2^{21333213003313} is an apocalyptic number.

It is an amenable number.

21333213003313 is a deficient number, since it is larger than the sum of its proper divisors (1231727748047).

21333213003313 is a wasteful number, since it uses less digits than its factorization.

21333213003313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72212688.

The product of its (nonzero) digits is 8748, while the sum is 28.

Adding to 21333213003313 its reverse (31330031233312), we get a palindrome (52663244236625).

The spelling of 21333213003313 in words is "twenty-one trillion, three hundred thirty-three billion, two hundred thirteen million, three thousand, three hundred thirteen".