2123896420361 has 2 divisors, whose sum is σ = 2123896420362. Its totient is φ = 2123896420360.

The previous prime is 2123896420277. The next prime is 2123896420433. The reversal of 2123896420361 is 1630246983212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1214886723961 + 909009696400 = 1102219^2 + 953420^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123896420361 - 2¹⁸ = 2123896158217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2123896423361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061948210180 + 1061948210181.

It is an arithmetic number, because the mean of its divisors is an integer number (1061948210181).

Almost surely, 2^{2123896420361} is an apocalyptic number.

It is an amenable number.

2123896420361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123896420361 is an equidigital number, since it uses as much as digits as its factorization.

2123896420361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 2123896420361 in words is "two trillion, one hundred twenty-three billion, eight hundred ninety-six million, four hundred twenty thousand, three hundred sixty-one".