20234111011 has 4 divisors (see below), whose sum is σ = 21113854992. Its totient is φ = 19354367032.

The previous prime is 20234110993. The next prime is 20234111021. The reversal of 20234111011 is 11011143202.

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 20234111011 - 2⁵ = 20234110979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20234111021) 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, 439871956 + ... + 439872001.

It is an arithmetic number, because the mean of its divisors is an integer number (5278463748).

Almost surely, 2^20234111011 is an apocalyptic number.

20234111011 is a deficient number, since it is larger than the sum of its proper divisors (879743981).

20234111011 is an equidigital number, since it uses as much as digits as its factorization.

20234111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879743980.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20234111011 its reverse (11011143202), we get a palindrome (31245254213).

The spelling of 20234111011 in words is "twenty billion, two hundred thirty-four million, one hundred eleven thousand, eleven".