3312113220161 has 2 divisors, whose sum is σ = 3312113220162. Its totient is φ = 3312113220160.

The previous prime is 3312113220149. The next prime is 3312113220217. The reversal of 3312113220161 is 1610223112133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2227015997761 + 1085097222400 = 1492319^2 + 1041680^2 .

It is an emirp because it is prime and its reverse (1610223112133) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3312113220161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3312113220161.

It is not a weakly prime, because it can be changed into another prime (3312113220131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1656056610080 + 1656056610081.

It is an arithmetic number, because the mean of its divisors is an integer number (1656056610081).

Almost surely, 2^{3312113220161} is an apocalyptic number.

It is an amenable number.

3312113220161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3312113220161 is an equidigital number, since it uses as much as digits as its factorization.

3312113220161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 3312113220161 its reverse (1610223112133), we get a palindrome (4922336332294).

The spelling of 3312113220161 in words is "three trillion, three hundred twelve billion, one hundred thirteen million, two hundred twenty thousand, one hundred sixty-one".