20034004111 has 16 divisors (see below), whose sum is σ = 24005802240. Its totient is φ = 16503981120.

The previous prime is 20034004097. The next prime is 20034004181. The reversal of 20034004111 is 11140043002.

It is a de Polignac number, because none of the positive numbers 2^k-20034004111 is a prime.

It is a super-2 number, since 2×20034004111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20034004181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2079030 + ... + 2088643.

It is an arithmetic number, because the mean of its divisors is an integer number (1500362640).

Almost surely, 2^20034004111 is an apocalyptic number.

20034004111 is a deficient number, since it is larger than the sum of its proper divisors (3971798129).

20034004111 is a wasteful number, since it uses less digits than its factorization.

20034004111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167726.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20034004111 its reverse (11140043002), we get a palindrome (31174047113).

The spelling of 20034004111 in words is "twenty billion, thirty-four million, four thousand, one hundred eleven".