20303342011 has 4 divisors (see below), whose sum is σ = 20304425592. Its totient is φ = 20302258432.

The previous prime is 20303341957. The next prime is 20303342021. The reversal of 20303342011 is 11024330302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20303342011 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 20303342011.

It is not an unprimeable number, because it can be changed into a prime (20303342021) 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 3 ways as a sum of consecutive naturals, for example, 513181 + ... + 551326.

It is an arithmetic number, because the mean of its divisors is an integer number (5076106398).

Almost surely, 2^20303342011 is an apocalyptic number.

20303342011 is a deficient number, since it is larger than the sum of its proper divisors (1083581).

20303342011 is a wasteful number, since it uses less digits than its factorization.

20303342011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083580.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20303342011 its reverse (11024330302), we get a palindrome (31327672313).

The spelling of 20303342011 in words is "twenty billion, three hundred three million, three hundred forty-two thousand, eleven".