20435343441 has 16 divisors (see below), whose sum is σ = 27293443776. Its totient is φ = 13600427456.

The previous prime is 20435343389. The next prime is 20435343443. The reversal of 20435343441 is 14434353402.

It is a cyclic number.

It is not a de Polignac number, because 20435343441 - 2⁹ = 20435342929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20435343443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6148006 + ... + 6151328.

It is an arithmetic number, because the mean of its divisors is an integer number (1705840236).

Almost surely, 2^20435343441 is an apocalyptic number.

It is an amenable number.

20435343441 is a deficient number, since it is larger than the sum of its proper divisors (6858100335).

20435343441 is a wasteful number, since it uses less digits than its factorization.

20435343441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6192.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 20435343441 its reverse (14434353402), we get a palindrome (34869696843).

The spelling of 20435343441 in words is "twenty billion, four hundred thirty-five million, three hundred forty-three thousand, four hundred forty-one".