2120341511 has 2 divisors, whose sum is σ = 2120341512. Its totient is φ = 2120341510.

The previous prime is 2120341493. The next prime is 2120341513. The reversal of 2120341511 is 1151430212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2120341511 - 2²² = 2116147207 is a prime.

It is a Sophie Germain prime.

Together with 2120341513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120341513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060170755 + 1060170756.

It is an arithmetic number, because the mean of its divisors is an integer number (1060170756).

Almost surely, 2^2120341511 is an apocalyptic number.

2120341511 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120341511 is an equidigital number, since it uses as much as digits as its factorization.

2120341511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2120341511 is about 46047.1661560188. The cubic root of 2120341511 is about 1284.7006344871.

Adding to 2120341511 its reverse (1151430212), we get a palindrome (3271771723).

The spelling of 2120341511 in words is "two billion, one hundred twenty million, three hundred forty-one thousand, five hundred eleven".