1820052103 has 4 divisors (see below), whose sum is σ = 1820414008. Its totient is φ = 1819690200.

The previous prime is 1820052083. The next prime is 1820052107. The reversal of 1820052103 is 3012500281.

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 1820052103 - 2²¹ = 1817954951 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 (1820052107) 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, 173301 + ... + 183502.

It is an arithmetic number, because the mean of its divisors is an integer number (455103502).

Almost surely, 2^1820052103 is an apocalyptic number.

1820052103 is a deficient number, since it is larger than the sum of its proper divisors (361905).

1820052103 is an equidigital number, since it uses as much as digits as its factorization.

1820052103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361904.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1820052103 is about 42662.0686676115. The cubic root of 1820052103 is about 1220.9408005645.

Adding to 1820052103 its reverse (3012500281), we get a palindrome (4832552384).

The spelling of 1820052103 in words is "one billion, eight hundred twenty million, fifty-two thousand, one hundred three".