10420120343 has 4 divisors (see below), whose sum is σ = 10436954760. Its totient is φ = 10403285928.

The previous prime is 10420120327. The next prime is 10420120349. The reversal of 10420120343 is 34302102401.

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 10420120343 - 2⁴ = 10420120327 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 (10420120349) 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, 8416280 + ... + 8417517.

It is an arithmetic number, because the mean of its divisors is an integer number (2609238690).

Almost surely, 2^10420120343 is an apocalyptic number.

10420120343 is a deficient number, since it is larger than the sum of its proper divisors (16834417).

10420120343 is an equidigital number, since it uses as much as digits as its factorization.

10420120343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16834416.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 10420120343 its reverse (34302102401), we get a palindrome (44722222744).

The spelling of 10420120343 in words is "ten billion, four hundred twenty million, one hundred twenty thousand, three hundred forty-three".