2123513411 has 2 divisors, whose sum is σ = 2123513412. Its totient is φ = 2123513410.

The previous prime is 2123513407. The next prime is 2123513449. The reversal of 2123513411 is 1143153212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2123513411 - 2² = 2123513407 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123513471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061756705 + 1061756706.

It is an arithmetic number, because the mean of its divisors is an integer number (1061756706).

Almost surely, 2^2123513411 is an apocalyptic number.

2123513411 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123513411 is an equidigital number, since it uses as much as digits as its factorization.

2123513411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

The square root of 2123513411 is about 46081.5951438316. The cubic root of 2123513411 is about 1285.3409262600.

Adding to 2123513411 its reverse (1143153212), we get a palindrome (3266666623).

The spelling of 2123513411 in words is "two billion, one hundred twenty-three million, five hundred thirteen thousand, four hundred eleven".