20211321341 has 4 divisors (see below), whose sum is σ = 20358849372. Its totient is φ = 20063793312.

The previous prime is 20211321329. The next prime is 20211321349. The reversal of 20211321341 is 14312311202.

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 10994361316 + 9216960025 = 104854^2 + 96005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20211321341 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 (20211321349) 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, 73763810 + ... + 73764083.

It is an arithmetic number, because the mean of its divisors is an integer number (5089712343).

Almost surely, 2^20211321341 is an apocalyptic number.

It is an amenable number.

20211321341 is a deficient number, since it is larger than the sum of its proper divisors (147528031).

20211321341 is a wasteful number, since it uses less digits than its factorization.

20211321341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147528030.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20211321341 its reverse (14312311202), we get a palindrome (34523632543).

The spelling of 20211321341 in words is "twenty billion, two hundred eleven million, three hundred twenty-one thousand, three hundred forty-one".