3211660661123 has 4 divisors (see below), whose sum is σ = 3212057709720. Its totient is φ = 3211263612528.

The previous prime is 3211660661119. The next prime is 3211660661233.

3211660661123 is nontrivially palindromic in base 10.

3211660661123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3211660661123 - 2² = 3211660661119 is a prime.

It is a super-2 number, since 2×3211660661123² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3211660661113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198512165 + ... + 198528342.

It is an arithmetic number, because the mean of its divisors is an integer number (803014427430).

Almost surely, 2^{3211660661123} is an apocalyptic number.

3211660661123 is a deficient number, since it is larger than the sum of its proper divisors (397048597).

3211660661123 is an equidigital number, since it uses as much as digits as its factorization.

3211660661123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397048596.

The product of its (nonzero) digits is 46656, while the sum is 38.

It can be divided in two parts, 3211660 and 661123, that added together give a palindrome (3872783).

The spelling of 3211660661123 in words is "three trillion, two hundred eleven billion, six hundred sixty million, six hundred sixty-one thousand, one hundred twenty-three".