20413443433 has 4 divisors (see below), whose sum is σ = 20413953748. Its totient is φ = 20412933120.

The previous prime is 20413443409. The next prime is 20413443439. The reversal of 20413443433 is 33434431402.

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 13163431824 + 7250011609 = 114732^2 + 85147^2 .

It is a cyclic number.

It is not a de Polignac number, because 20413443433 - 2²¹ = 20411346281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20413443395 and 20413443404.

It is not an unprimeable number, because it can be changed into a prime (20413443439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189528 + ... + 277033.

It is an arithmetic number, because the mean of its divisors is an integer number (5103488437).

Almost surely, 2^20413443433 is an apocalyptic number.

It is an amenable number.

20413443433 is a deficient number, since it is larger than the sum of its proper divisors (510315).

20413443433 is an equidigital number, since it uses as much as digits as its factorization.

20413443433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510314.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 20413443433 its reverse (33434431402), we get a palindrome (53847874835).

The spelling of 20413443433 in words is "twenty billion, four hundred thirteen million, four hundred forty-three thousand, four hundred thirty-three".