3111211213305 has 64 divisors (see below), whose sum is σ = 5643924679680. Its totient is φ = 1450822752000.

The previous prime is 3111211213283. The next prime is 3111211213337. The reversal of 3111211213305 is 5033121121113.

3111211213305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3111211213305 - 2⁶ = 3111211213241 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23835870 + ... + 23966040.

It is an arithmetic number, because the mean of its divisors is an integer number (88186323120).

Almost surely, 2^{3111211213305} is an apocalyptic number.

It is an amenable number.

3111211213305 is a deficient number, since it is larger than the sum of its proper divisors (2532713466375).

3111211213305 is a wasteful number, since it uses less digits than its factorization.

3111211213305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136662.

The product of its (nonzero) digits is 540, while the sum is 24.

Adding to 3111211213305 its reverse (5033121121113), we get a palindrome (8144332334418).

The spelling of 3111211213305 in words is "three trillion, one hundred eleven billion, two hundred eleven million, two hundred thirteen thousand, three hundred five".