20341042111 has 4 divisors (see below), whose sum is σ = 21905737672. Its totient is φ = 18776346552.

The previous prime is 20341042103. The next prime is 20341042171. The reversal of 20341042111 is 11124014302.

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 20341042111 - 2³ = 20341042103 is a prime.

It is a super-2 number, since 2×20341042111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20341042171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782347761 + ... + 782347786.

It is an arithmetic number, because the mean of its divisors is an integer number (5476434418).

Almost surely, 2^20341042111 is an apocalyptic number.

20341042111 is a deficient number, since it is larger than the sum of its proper divisors (1564695561).

20341042111 is a wasteful number, since it uses less digits than its factorization.

20341042111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564695560.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20341042111 its reverse (11124014302), we get a palindrome (31465056413).

The spelling of 20341042111 in words is "twenty billion, three hundred forty-one million, forty-two thousand, one hundred eleven".