20301312111 has 16 divisors (see below), whose sum is σ = 27200275968. Its totient is φ = 13468334400.

The previous prime is 20301312103. The next prime is 20301312121. The reversal of 20301312111 is 11121310302.

It is a happy number.

It is not a de Polignac number, because 20301312111 - 2³ = 20301312103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301312121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1813371 + ... + 1824531.

It is an arithmetic number, because the mean of its divisors is an integer number (1700017248).

Almost surely, 2^20301312111 is an apocalyptic number.

20301312111 is a deficient number, since it is larger than the sum of its proper divisors (6898963857).

20301312111 is a wasteful number, since it uses less digits than its factorization.

20301312111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14062.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 20301312111 its reverse (11121310302), we get a palindrome (31422622413).

The spelling of 20301312111 in words is "twenty billion, three hundred one million, three hundred twelve thousand, one hundred eleven".