20032031011 has 4 divisors (see below), whose sum is σ = 20360425024. Its totient is φ = 19703637000.

The previous prime is 20032031003. The next prime is 20032031029. The reversal of 20032031011 is 11013023002.

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 20032031011 - 2³ = 20032031003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20032030982 and 20032031000.

It is not an unprimeable number, because it can be changed into a prime (20032038011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164196915 + ... + 164197036.

It is an arithmetic number, because the mean of its divisors is an integer number (5090106256).

Almost surely, 2^20032031011 is an apocalyptic number.

20032031011 is a deficient number, since it is larger than the sum of its proper divisors (328394013).

20032031011 is an equidigital number, since it uses as much as digits as its factorization.

20032031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328394012.

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

Adding to 20032031011 its reverse (11013023002), we get a palindrome (31045054013).

The spelling of 20032031011 in words is "twenty billion, thirty-two million, thirty-one thousand, eleven".