20204325523 has 2 divisors, whose sum is σ = 20204325524. Its totient is φ = 20204325522.

The previous prime is 20204325481. The next prime is 20204325539. The reversal of 20204325523 is 32552340202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20204325523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20204325491 and 20204325500.

It is not a weakly prime, because it can be changed into another prime (20234325523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10102162761 + 10102162762.

It is an arithmetic number, because the mean of its divisors is an integer number (10102162762).

Almost surely, 2^20204325523 is an apocalyptic number.

20204325523 is a deficient number, since it is larger than the sum of its proper divisors (1).

20204325523 is an equidigital number, since it uses as much as digits as its factorization.

20204325523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 20204325523 its reverse (32552340202), we get a palindrome (52756665725).

The spelling of 20204325523 in words is "twenty billion, two hundred four million, three hundred twenty-five thousand, five hundred twenty-three".