20351026523393 has 2 divisors, whose sum is σ = 20351026523394. Its totient is φ = 20351026523392.

The previous prime is 20351026523357. The next prime is 20351026523419. The reversal of 20351026523393 is 39332562015302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19544250708544 + 806775814849 = 4420888^2 + 898207^2 .

It is a cyclic number.

It is not a de Polignac number, because 20351026523393 - 2¹² = 20351026519297 is a prime.

It is not a weakly prime, because it can be changed into another prime (20351022523393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10175513261696 + 10175513261697.

It is an arithmetic number, because the mean of its divisors is an integer number (10175513261697).

Almost surely, 2^{20351026523393} is an apocalyptic number.

It is an amenable number.

20351026523393 is a deficient number, since it is larger than the sum of its proper divisors (1).

20351026523393 is an equidigital number, since it uses as much as digits as its factorization.

20351026523393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 874800, while the sum is 44.

Adding to 20351026523393 its reverse (39332562015302), we get a palindrome (59683588538695).

The spelling of 20351026523393 in words is "twenty trillion, three hundred fifty-one billion, twenty-six million, five hundred twenty-three thousand, three hundred ninety-three".