20434220411 has 8 divisors (see below), whose sum is σ = 22301283504. Its totient is φ = 18568725120.

The previous prime is 20434220393. The next prime is 20434220449. The reversal of 20434220411 is 11402243402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20434220411 - 2¹⁴ = 20434204027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20434220011) 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, 364610 + ... + 416903.

It is an arithmetic number, because the mean of its divisors is an integer number (2787660438).

Almost surely, 2^20434220411 is an apocalyptic number.

20434220411 is a deficient number, since it is larger than the sum of its proper divisors (1867063093).

20434220411 is a wasteful number, since it uses less digits than its factorization.

20434220411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783901.

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

Adding to 20434220411 its reverse (11402243402), we get a palindrome (31836463813).

The spelling of 20434220411 in words is "twenty billion, four hundred thirty-four million, two hundred twenty thousand, four hundred eleven".