2120231006717 has 2 divisors, whose sum is σ = 2120231006718. Its totient is φ = 2120231006716.

The previous prime is 2120231006713. The next prime is 2120231006737. The reversal of 2120231006717 is 7176001320212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1969837513081 + 150393493636 = 1403509^2 + 387806^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120231006717 - 2² = 2120231006713 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120231006713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060115503358 + 1060115503359.

It is an arithmetic number, because the mean of its divisors is an integer number (1060115503359).

Almost surely, 2^{2120231006717} is an apocalyptic number.

It is an amenable number.

2120231006717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120231006717 is an equidigital number, since it uses as much as digits as its factorization.

2120231006717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 32.

Adding to 2120231006717 its reverse (7176001320212), we get a palindrome (9296232326929).

The spelling of 2120231006717 in words is "two trillion, one hundred twenty billion, two hundred thirty-one million, six thousand, seven hundred seventeen".