20434024011 has 16 divisors (see below), whose sum is σ = 27664084224. Its totient is φ = 13413501024.

The previous prime is 20434023979. The next prime is 20434024027. The reversal of 20434024011 is 11042043402.

It is not a de Polignac number, because 20434024011 - 2⁵ = 20434023979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20434024081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466045 + ... + 508001.

It is an arithmetic number, because the mean of its divisors is an integer number (1729005264).

Almost surely, 2^20434024011 is an apocalyptic number.

20434024011 is a deficient number, since it is larger than the sum of its proper divisors (7230060213).

20434024011 is a wasteful number, since it uses less digits than its factorization.

20434024011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44450.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20434024011 its reverse (11042043402), we get a palindrome (31476067413).

The spelling of 20434024011 in words is "twenty billion, four hundred thirty-four million, twenty-four thousand, eleven".