20343032011 has 4 divisors (see below), whose sum is σ = 20449540224. Its totient is φ = 20236523800.

The previous prime is 20343031979. The next prime is 20343032053. The reversal of 20343032011 is 11023034302.

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

It is a cyclic number.

It is not a de Polignac number, because 20343032011 - 2⁵ = 20343031979 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 20343032011.

It is not an unprimeable number, because it can be changed into a prime (20343132011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53253820 + ... + 53254201.

It is an arithmetic number, because the mean of its divisors is an integer number (5112385056).

Almost surely, 2^20343032011 is an apocalyptic number.

20343032011 is a deficient number, since it is larger than the sum of its proper divisors (106508213).

20343032011 is a wasteful number, since it uses less digits than its factorization.

20343032011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106508212.

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

Adding to 20343032011 its reverse (11023034302), we get a palindrome (31366066313).

The spelling of 20343032011 in words is "twenty billion, three hundred forty-three million, thirty-two thousand, eleven".