20085607523 has 2 divisors, whose sum is σ = 20085607524. Its totient is φ = 20085607522.

The previous prime is 20085607519. The next prime is 20085607573. The reversal of 20085607523 is 32570658002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20085607523 - 2² = 20085607519 is a prime.

It is not a weakly prime, because it can be changed into another prime (20085607573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10042803761 + 10042803762.

It is an arithmetic number, because the mean of its divisors is an integer number (10042803762).

Almost surely, 2^20085607523 is an apocalyptic number.

20085607523 is a deficient number, since it is larger than the sum of its proper divisors (1).

20085607523 is an equidigital number, since it uses as much as digits as its factorization.

20085607523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 20085607523 in words is "twenty billion, eighty-five million, six hundred seven thousand, five hundred twenty-three".