21004334343330 has 32 divisors (see below), whose sum is σ = 54288125688384. Its totient is φ = 5170297684416.

The previous prime is 21004334343283. The next prime is 21004334343331. The reversal of 21004334343330 is 3334343340012.

It is a super-2 number, since 2×21004334343330² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21004334343291 and 21004334343300.

It is not an unprimeable number, because it can be changed into a prime (21004334343331) 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, 26928633384 + ... + 26928634163.

It is an arithmetic number, because the mean of its divisors is an integer number (1696503927762).

Almost surely, 2^{21004334343330} is an apocalyptic number.

21004334343330 is an abundant number, since it is smaller than the sum of its proper divisors (33283791345054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21004334343330 is a wasteful number, since it uses less digits than its factorization.

21004334343330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53857267570.

The product of its (nonzero) digits is 93312, while the sum is 33.

Adding to 21004334343330 its reverse (3334343340012), we get a palindrome (24338677683342).

The spelling of 21004334343330 in words is "twenty-one trillion, four billion, three hundred thirty-four million, three hundred forty-three thousand, three hundred thirty".