10340120543 has 4 divisors (see below), whose sum is σ = 10340586600. Its totient is φ = 10339654488.

The previous prime is 10340120513. The next prime is 10340120561. The reversal of 10340120543 is 34502104301.

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 10340120543 - 2²⁸ = 10071685087 is a prime.

It is a super-2 number, since 2×10340120543² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10340120513) 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, 197993 + ... + 244706.

It is an arithmetic number, because the mean of its divisors is an integer number (2585146650).

Almost surely, 2^10340120543 is an apocalyptic number.

10340120543 is a deficient number, since it is larger than the sum of its proper divisors (466057).

10340120543 is an equidigital number, since it uses as much as digits as its factorization.

10340120543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466056.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 10340120543 its reverse (34502104301), we get a palindrome (44842224844).

The spelling of 10340120543 in words is "ten billion, three hundred forty million, one hundred twenty thousand, five hundred forty-three".