20424303134 has 4 divisors (see below), whose sum is σ = 30636454704. Its totient is φ = 10212151566.

The previous prime is 20424303121. The next prime is 20424303139. The reversal of 20424303134 is 43130342402.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424303139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106075782 + ... + 5106075785.

It is an arithmetic number, because the mean of its divisors is an integer number (7659113676).

Almost surely, 2^20424303134 is an apocalyptic number.

20424303134 is a deficient number, since it is larger than the sum of its proper divisors (10212151570).

20424303134 is a wasteful number, since it uses less digits than its factorization.

20424303134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10212151569.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20424303134 its reverse (43130342402), we get a palindrome (63554645536).

The spelling of 20424303134 in words is "twenty billion, four hundred twenty-four million, three hundred three thousand, one hundred thirty-four".