2120424311 has 2 divisors, whose sum is σ = 2120424312. Its totient is φ = 2120424310.

The previous prime is 2120424307. The next prime is 2120424329. The reversal of 2120424311 is 1134240212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120424311 - 2² = 2120424307 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120424611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060212155 + 1060212156.

It is an arithmetic number, because the mean of its divisors is an integer number (1060212156).

Almost surely, 2^2120424311 is an apocalyptic number.

2120424311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120424311 is an equidigital number, since it uses as much as digits as its factorization.

2120424311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2120424311 is about 46048.0652253708. The cubic root of 2120424311 is about 1284.7173569235.

Adding to 2120424311 its reverse (1134240212), we get a palindrome (3254664523).

The spelling of 2120424311 in words is "two billion, one hundred twenty million, four hundred twenty-four thousand, three hundred eleven".