2123520533 has 2 divisors, whose sum is σ = 2123520534. Its totient is φ = 2123520532.

The previous prime is 2123520467. The next prime is 2123520559. The reversal of 2123520533 is 3350253212.

It is an a-pointer prime, because the next prime (2123520559) can be obtained adding 2123520533 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1980072004 + 143448529 = 44498^2 + 11977^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123520533 - 2²⁰ = 2122471957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123580533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061760266 + 1061760267.

It is an arithmetic number, because the mean of its divisors is an integer number (1061760267).

Almost surely, 2^2123520533 is an apocalyptic number.

It is an amenable number.

2123520533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123520533 is an equidigital number, since it uses as much as digits as its factorization.

2123520533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 2123520533 is about 46081.6724197375. The cubic root of 2123520533 is about 1285.3423632163.

Adding to 2123520533 its reverse (3350253212), we get a palindrome (5473773745).

The spelling of 2123520533 in words is "two billion, one hundred twenty-three million, five hundred twenty thousand, five hundred thirty-three".