20525243371 has 2 divisors, whose sum is σ = 20525243372. Its totient is φ = 20525243370.

The previous prime is 20525243351. The next prime is 20525243381. The reversal of 20525243371 is 17334252502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20525243371 - 2¹¹ = 20525241323 is a prime.

It is not a weakly prime, because it can be changed into another prime (20525243311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10262621685 + 10262621686.

It is an arithmetic number, because the mean of its divisors is an integer number (10262621686).

Almost surely, 2^20525243371 is an apocalyptic number.

20525243371 is a deficient number, since it is larger than the sum of its proper divisors (1).

20525243371 is an equidigital number, since it uses as much as digits as its factorization.

20525243371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 34.

Adding to 20525243371 its reverse (17334252502), we get a palindrome (37859495873).

The spelling of 20525243371 in words is "twenty billion, five hundred twenty-five million, two hundred forty-three thousand, three hundred seventy-one".