20412243241 has 4 divisors (see below), whose sum is σ = 21982415812. Its totient is φ = 18842070672.

The previous prime is 20412243227. The next prime is 20412243259. The reversal of 20412243241 is 14234221402.

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 901740841 + 19510502400 = 30029^2 + 139680^2 .

It is a cyclic number.

It is not a de Polignac number, because 20412243241 - 2²⁵ = 20378688809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20412243221) 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, 785086266 + ... + 785086291.

It is an arithmetic number, because the mean of its divisors is an integer number (5495603953).

Almost surely, 2^20412243241 is an apocalyptic number.

It is an amenable number.

20412243241 is a deficient number, since it is larger than the sum of its proper divisors (1570172571).

20412243241 is a wasteful number, since it uses less digits than its factorization.

20412243241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570172570.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20412243241 its reverse (14234221402), we get a palindrome (34646464643).

The spelling of 20412243241 in words is "twenty billion, four hundred twelve million, two hundred forty-three thousand, two hundred forty-one".