20034541111 has 4 divisors (see below), whose sum is σ = 21575659672. Its totient is φ = 18493422552.

The previous prime is 20034541081. The next prime is 20034541129. The reversal of 20034541111 is 11114543002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11114543002 = 2 ⋅5557271501.

It is a cyclic number.

It is not a de Polignac number, because 20034541111 - 2⁷ = 20034540983 is a prime.

It is a super-2 number, since 2×20034541111² (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 (20034551111) 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, 770559261 + ... + 770559286.

It is an arithmetic number, because the mean of its divisors is an integer number (5393914918).

Almost surely, 2^20034541111 is an apocalyptic number.

20034541111 is a deficient number, since it is larger than the sum of its proper divisors (1541118561).

20034541111 is a wasteful number, since it uses less digits than its factorization.

20034541111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541118560.

The product of its (nonzero) digits is 480, while the sum is 22.

The spelling of 20034541111 in words is "twenty billion, thirty-four million, five hundred forty-one thousand, one hundred eleven".