20341312421 has 8 divisors (see below), whose sum is σ = 20593825560. Its totient is φ = 20090307328.

The previous prime is 20341312373. The next prime is 20341312427. The reversal of 20341312421 is 12421314302.

It can be written as a sum of positive squares in 4 ways, for example, as 3089803396 + 17251509025 = 55586^2 + 131345^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20341312421 - 2³⁴ = 3161443237 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 (20341312427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349856 + ... + 403833.

It is an arithmetic number, because the mean of its divisors is an integer number (2574228195).

Almost surely, 2^20341312421 is an apocalyptic number.

It is an amenable number.

20341312421 is a deficient number, since it is larger than the sum of its proper divisors (252513139).

20341312421 is a wasteful number, since it uses less digits than its factorization.

20341312421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754023.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20341312421 its reverse (12421314302), we get a palindrome (32762626723).

The spelling of 20341312421 in words is "twenty billion, three hundred forty-one million, three hundred twelve thousand, four hundred twenty-one".