20040034211 has 4 divisors (see below), whose sum is σ = 20368559424. Its totient is φ = 19711509000.

The previous prime is 20040034177. The next prime is 20040034219. The reversal of 20040034211 is 11243004002.

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 20040034211 - 2²⁶ = 19972925347 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 20040034211.

It is not an unprimeable number, because it can be changed into a prime (20040034219) 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, 164262515 + ... + 164262636.

It is an arithmetic number, because the mean of its divisors is an integer number (5092139856).

Almost surely, 2^20040034211 is an apocalyptic number.

20040034211 is a deficient number, since it is larger than the sum of its proper divisors (328525213).

20040034211 is an equidigital number, since it uses as much as digits as its factorization.

20040034211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328525212.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20040034211 its reverse (11243004002), we get a palindrome (31283038213).

The spelling of 20040034211 in words is "twenty billion, forty million, thirty-four thousand, two hundred eleven".