20523133583 has 2 divisors, whose sum is σ = 20523133584. Its totient is φ = 20523133582.

The previous prime is 20523133559. The next prime is 20523133633. The reversal of 20523133583 is 38533132502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20523133583 - 2³² = 16228166287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20523133523) 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, 10261566791 + 10261566792.

It is an arithmetic number, because the mean of its divisors is an integer number (10261566792).

Almost surely, 2^20523133583 is an apocalyptic number.

20523133583 is a deficient number, since it is larger than the sum of its proper divisors (1).

20523133583 is an equidigital number, since it uses as much as digits as its factorization.

20523133583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 20523133583 in words is "twenty billion, five hundred twenty-three million, one hundred thirty-three thousand, five hundred eighty-three".