21703511067 has 32 divisors (see below), whose sum is σ = 33822142464. Its totient is φ = 12123540000.

The previous prime is 21703511051. The next prime is 21703511101. The reversal of 21703511067 is 76011530712.

It is not a de Polignac number, because 21703511067 - 2⁴ = 21703511051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21703511017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125442 + ... + 243192.

It is an arithmetic number, because the mean of its divisors is an integer number (1056941952).

Almost surely, 2^21703511067 is an apocalyptic number.

21703511067 is a deficient number, since it is larger than the sum of its proper divisors (12118631397).

21703511067 is a wasteful number, since it uses less digits than its factorization.

21703511067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117959.

The product of its (nonzero) digits is 8820, while the sum is 33.

The spelling of 21703511067 in words is "twenty-one billion, seven hundred three million, five hundred eleven thousand, sixty-seven".