20204342302 has 4 divisors (see below), whose sum is σ = 30306513456. Its totient is φ = 10102171150.

The previous prime is 20204342297. The next prime is 20204342309. The reversal of 20204342302 is 20324340202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20324340202 = 2 ⋅10162170101.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20204342309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051085574 + ... + 5051085577.

It is an arithmetic number, because the mean of its divisors is an integer number (7576628364).

Almost surely, 2^20204342302 is an apocalyptic number.

20204342302 is a deficient number, since it is larger than the sum of its proper divisors (10102171154).

20204342302 is a wasteful number, since it uses less digits than its factorization.

20204342302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10102171153.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20204342302 its reverse (20324340202), we get a palindrome (40528682504).

The spelling of 20204342302 in words is "twenty billion, two hundred four million, three hundred forty-two thousand, three hundred two".