20341011421 has 4 divisors (see below), whose sum is σ = 20413399644. Its totient is φ = 20268623200.

The previous prime is 20341011401. The next prime is 20341011433. The reversal of 20341011421 is 12411014302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5124555396 + 15216456025 = 71586^2 + 123355^2 .

It is a cyclic number.

It is not a de Polignac number, because 20341011421 - 2⁷ = 20341011293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20341011401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36193690 + ... + 36194251.

It is an arithmetic number, because the mean of its divisors is an integer number (5103349911).

Almost surely, 2^20341011421 is an apocalyptic number.

It is an amenable number.

20341011421 is a deficient number, since it is larger than the sum of its proper divisors (72388223).

20341011421 is an equidigital number, since it uses as much as digits as its factorization.

20341011421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72388222.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20341011421 its reverse (12411014302), we get a palindrome (32752025723).

The spelling of 20341011421 in words is "twenty billion, three hundred forty-one million, eleven thousand, four hundred twenty-one".