20544132341 has 4 divisors (see below), whose sum is σ = 21752610732. Its totient is φ = 19335653952.

The previous prime is 20544132313. The next prime is 20544132391. The reversal of 20544132341 is 14323144502.

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 12921096241 + 7623036100 = 113671^2 + 87310^2 .

It is a cyclic number.

It is not a de Polignac number, because 20544132341 - 2¹⁰ = 20544131317 is a prime.

It is a super-2 number, since 2×20544132341² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20544132311) 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, 604239170 + ... + 604239203.

It is an arithmetic number, because the mean of its divisors is an integer number (5438152683).

Almost surely, 2^20544132341 is an apocalyptic number.

It is an amenable number.

20544132341 is a deficient number, since it is larger than the sum of its proper divisors (1208478391).

20544132341 is a wasteful number, since it uses less digits than its factorization.

20544132341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208478390.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 20544132341 its reverse (14323144502), we get a palindrome (34867276843).

The spelling of 20544132341 in words is "twenty billion, five hundred forty-four million, one hundred thirty-two thousand, three hundred forty-one".