20310032011 has 4 divisors (see below), whose sum is σ = 20311274512. Its totient is φ = 20308789512.

The previous prime is 20310032009. The next prime is 20310032047. The reversal of 20310032011 is 11023001302.

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 20310032011 - 2¹ = 20310032009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20310031982 and 20310032000.

It is not an unprimeable number, because it can be changed into a prime (20310033011) 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, 596400 + ... + 629533.

It is an arithmetic number, because the mean of its divisors is an integer number (5077818628).

Almost surely, 2^20310032011 is an apocalyptic number.

20310032011 is a deficient number, since it is larger than the sum of its proper divisors (1242501).

20310032011 is a wasteful number, since it uses less digits than its factorization.

20310032011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242500.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20310032011 its reverse (11023001302), we get a palindrome (31333033313).

The spelling of 20310032011 in words is "twenty billion, three hundred ten million, thirty-two thousand, eleven".