2120323013 has 2 divisors, whose sum is σ = 2120323014. Its totient is φ = 2120323012.

The previous prime is 2120322989. The next prime is 2120323019. The reversal of 2120323013 is 3103230212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2117656324 + 2666689 = 46018^2 + 1633^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120323013 - 2³⁰ = 1046581189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2120322982 and 2120323000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120323019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060161506 + 1060161507.

It is an arithmetic number, because the mean of its divisors is an integer number (1060161507).

Almost surely, 2^2120323013 is an apocalyptic number.

It is an amenable number.

2120323013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120323013 is an equidigital number, since it uses as much as digits as its factorization.

2120323013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2120323013 is about 46046.9652963146. The cubic root of 2120323013 is about 1284.6968985384.

Adding to 2120323013 its reverse (3103230212), we get a palindrome (5223553225).

The spelling of 2120323013 in words is "two billion, one hundred twenty million, three hundred twenty-three thousand, thirteen".