20041312523 has 2 divisors, whose sum is σ = 20041312524. Its totient is φ = 20041312522.

The previous prime is 20041312519. The next prime is 20041312553. The reversal of 20041312523 is 32521314002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20041312523 - 2² = 20041312519 is a prime.

It is not a weakly prime, because it can be changed into another prime (20041312553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10020656261 + 10020656262.

It is an arithmetic number, because the mean of its divisors is an integer number (10020656262).

Almost surely, 2^20041312523 is an apocalyptic number.

20041312523 is a deficient number, since it is larger than the sum of its proper divisors (1).

20041312523 is an equidigital number, since it uses as much as digits as its factorization.

20041312523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20041312523 its reverse (32521314002), we get a palindrome (52562626525).

The spelling of 20041312523 in words is "twenty billion, forty-one million, three hundred twelve thousand, five hundred twenty-three".