20123010343 has 4 divisors (see below), whose sum is σ = 20150998560. Its totient is φ = 20095022128.

The previous prime is 20123010331. The next prime is 20123010433. The reversal of 20123010343 is 34301032102.

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 20123010343 - 2⁵ = 20123010311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20123010343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123011343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13993030 + ... + 13994467.

It is an arithmetic number, because the mean of its divisors is an integer number (5037749640).

Almost surely, 2^20123010343 is an apocalyptic number.

20123010343 is a deficient number, since it is larger than the sum of its proper divisors (27988217).

20123010343 is an equidigital number, since it uses as much as digits as its factorization.

20123010343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27988216.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20123010343 its reverse (34301032102), we get a palindrome (54424042445).

The spelling of 20123010343 in words is "twenty billion, one hundred twenty-three million, ten thousand, three hundred forty-three".