20434402030411 has 4 divisors (see below), whose sum is σ = 20434989581424. Its totient is φ = 20433814479400.

The previous prime is 20434402030381. The next prime is 20434402030421. The reversal of 20434402030411 is 11403020443402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20434402030411 - 2⁷ = 20434402030283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20434402030411.

It is not an unprimeable number, because it can be changed into a prime (20434402030421) 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, 293723335 + ... + 293792896.

It is an arithmetic number, because the mean of its divisors is an integer number (5108747395356).

Almost surely, 2^{20434402030411} is an apocalyptic number.

20434402030411 is a deficient number, since it is larger than the sum of its proper divisors (587551013).

20434402030411 is an equidigital number, since it uses as much as digits as its factorization.

20434402030411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587551012.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20434402030411 its reverse (11403020443402), we get a palindrome (31837422473813).

The spelling of 20434402030411 in words is "twenty trillion, four hundred thirty-four billion, four hundred two million, thirty thousand, four hundred eleven".