21334034005 has 32 divisors (see below), whose sum is σ = 27902160000. Its totient is φ = 15597598464.

The previous prime is 21334033937. The next prime is 21334034011. The reversal of 21334034005 is 50043043312.

It is a cyclic number.

It is not a de Polignac number, because 21334034005 - 2¹⁵ = 21334001237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3934186 + ... + 3939604.

It is an arithmetic number, because the mean of its divisors is an integer number (871942500).

Almost surely, 2^21334034005 is an apocalyptic number.

It is an amenable number.

21334034005 is a deficient number, since it is larger than the sum of its proper divisors (6568125995).

21334034005 is a wasteful number, since it uses less digits than its factorization.

21334034005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6901.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 21334034005 its reverse (50043043312), we get a palindrome (71377077317).

The spelling of 21334034005 in words is "twenty-one billion, three hundred thirty-four million, thirty-four thousand, five".