3211230123205 has 8 divisors (see below), whose sum is σ = 4149897390072. Its totient is φ = 2371369937088.

The previous prime is 3211230123197. The next prime is 3211230123223. The reversal of 3211230123205 is 5023210321123.

It can be written as a sum of positive squares in 4 ways, for example, as 563990486049 + 2647239637156 = 750993^2 + 1627034^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3211230123205 - 2³ = 3211230123197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3211230123205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24701770114 + ... + 24701770243.

It is an arithmetic number, because the mean of its divisors is an integer number (518737173759).

Almost surely, 2^{3211230123205} is an apocalyptic number.

It is an amenable number.

3211230123205 is a deficient number, since it is larger than the sum of its proper divisors (938667266867).

3211230123205 is a wasteful number, since it uses less digits than its factorization.

3211230123205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49403540375.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 3211230123205 its reverse (5023210321123), we get a palindrome (8234440444328).

The spelling of 3211230123205 in words is "three trillion, two hundred eleven billion, two hundred thirty million, one hundred twenty-three thousand, two hundred five".