20213244041 has 8 divisors (see below), whose sum is σ = 20761399560. Its totient is φ = 19665186048.

The previous prime is 20213244019. The next prime is 20213244043. The reversal of 20213244041 is 14044231202.

It can be written as a sum of positive squares in 4 ways, for example, as 3983503225 + 16229740816 = 63115^2 + 127396^2 .

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 20213244041 - 2¹⁸ = 20212981897 is a prime.

It is a super-2 number, since 2×20213244041² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20213243998 and 20213244016.

It is not an unprimeable number, because it can be changed into a prime (20213244043) 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, 631475 + ... + 662711.

It is an arithmetic number, because the mean of its divisors is an integer number (2595174945).

Almost surely, 2^20213244041 is an apocalyptic number.

It is an amenable number.

20213244041 is a deficient number, since it is larger than the sum of its proper divisors (548155519).

20213244041 is a wasteful number, since it uses less digits than its factorization.

20213244041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48763.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20213244041 its reverse (14044231202), we get a palindrome (34257475243).

The spelling of 20213244041 in words is "twenty billion, two hundred thirteen million, two hundred forty-four thousand, forty-one".