20341011391 has 2 divisors, whose sum is σ = 20341011392. Its totient is φ = 20341011390.

The previous prime is 20341011373. The next prime is 20341011401. The reversal of 20341011391 is 19311014302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20341011391 - 2¹¹ = 20341009343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20341014391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10170505695 + 10170505696.

It is an arithmetic number, because the mean of its divisors is an integer number (10170505696).

Almost surely, 2^20341011391 is an apocalyptic number.

20341011391 is a deficient number, since it is larger than the sum of its proper divisors (1).

20341011391 is an equidigital number, since it uses as much as digits as its factorization.

20341011391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 20341011391 its reverse (19311014302), we get a palindrome (39652025693).

The spelling of 20341011391 in words is "twenty billion, three hundred forty-one million, eleven thousand, three hundred ninety-one".