105420518803 has 4 divisors (see below), whose sum is σ = 105427773288. Its totient is φ = 105413264320.

The previous prime is 105420518771. The next prime is 105420518809. The reversal of 105420518803 is 308815024501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 308815024501 = 383 ⋅806305547.

It is a cyclic number.

It is not a de Polignac number, because 105420518803 - 2⁵ = 105420518771 is a prime.

It is a super-2 number, since 2×105420518803² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105420518809) 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, 3605401 + ... + 3634522.

It is an arithmetic number, because the mean of its divisors is an integer number (26356943322).

Almost surely, 2^105420518803 is an apocalyptic number.

105420518803 is a deficient number, since it is larger than the sum of its proper divisors (7254485).

105420518803 is an equidigital number, since it uses as much as digits as its factorization.

105420518803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7254484.

The product of its (nonzero) digits is 38400, while the sum is 37.

The spelling of 105420518803 in words is "one hundred five billion, four hundred twenty million, five hundred eighteen thousand, eight hundred three".