20134112111431 has 16 divisors (see below), whose sum is σ = 20902821907968. Its totient is φ = 19382244918400.

The previous prime is 20134112111381. The next prime is 20134112111461. The reversal of 20134112111431 is 13411121143102.

It is a cyclic number.

It is not a de Polignac number, because 20134112111431 - 2³⁷ = 19996673157959 is a prime.

It is a super-2 number, since 2×20134112111431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20134112111396 and 20134112111405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134112111461) 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, 13773805 + ... + 15165286.

It is an arithmetic number, because the mean of its divisors is an integer number (1306426369248).

Almost surely, 2^{20134112111431} is an apocalyptic number.

20134112111431 is a deficient number, since it is larger than the sum of its proper divisors (768709796537).

20134112111431 is a wasteful number, since it uses less digits than its factorization.

20134112111431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28939382.

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 20134112111431 its reverse (13411121143102), we get a palindrome (33545233254533).

The spelling of 20134112111431 in words is "twenty trillion, one hundred thirty-four billion, one hundred twelve million, one hundred eleven thousand, four hundred thirty-one".