20340112143 has 8 divisors (see below), whose sum is σ = 29206314928. Its totient is φ = 12516992064.

The previous prime is 20340112127. The next prime is 20340112147. The reversal of 20340112143 is 34121104302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20340112143 - 2⁴ = 20340112127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20340112147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260770630 + ... + 260770707.

It is an arithmetic number, because the mean of its divisors is an integer number (3650789366).

Almost surely, 2^20340112143 is an apocalyptic number.

20340112143 is a deficient number, since it is larger than the sum of its proper divisors (8866202785).

20340112143 is a wasteful number, since it uses less digits than its factorization.

20340112143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521541353.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20340112143 its reverse (34121104302), we get a palindrome (54461216445).

The spelling of 20340112143 in words is "twenty billion, three hundred forty million, one hundred twelve thousand, one hundred forty-three".