20434302002 has 4 divisors (see below), whose sum is σ = 30651453006. Its totient is φ = 10217151000.

The previous prime is 20434301983. The next prime is 20434302037. The reversal of 20434302002 is 20020343402.

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

It can be written as a sum of positive squares in only one way, i.e., 19748961961 + 685340041 = 140531^2 + 26179^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5108575499 + ... + 5108575502.

Almost surely, 2^20434302002 is an apocalyptic number.

20434302002 is a deficient number, since it is larger than the sum of its proper divisors (10217151004).

20434302002 is a wasteful number, since it uses less digits than its factorization.

20434302002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10217151003.

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20434302002 its reverse (20020343402), we get a palindrome (40454645404).

The spelling of 20434302002 in words is "twenty billion, four hundred thirty-four million, three hundred two thousand, two".