1233310322161 has 2 divisors, whose sum is σ = 1233310322162. Its totient is φ = 1233310322160.

The previous prime is 1233310322149. The next prime is 1233310322219. The reversal of 1233310322161 is 1612230133321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 949759397136 + 283550925025 = 974556^2 + 532495^2 .

It is an emirp because it is prime and its reverse (1612230133321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1233310322161 - 2²⁵ = 1233276767729 is a prime.

It is not a weakly prime, because it can be changed into another prime (1233310322141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616655161080 + 616655161081.

It is an arithmetic number, because the mean of its divisors is an integer number (616655161081).

Almost surely, 2^{1233310322161} is an apocalyptic number.

It is an amenable number.

1233310322161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233310322161 is an equidigital number, since it uses as much as digits as its factorization.

1233310322161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 1233310322161 its reverse (1612230133321), we get a palindrome (2845540455482).

The spelling of 1233310322161 in words is "one trillion, two hundred thirty-three billion, three hundred ten million, three hundred twenty-two thousand, one hundred sixty-one".