10820123 has 4 divisors (see below), whose sum is σ = 10899240. Its totient is φ = 10741008.

The previous prime is 10820113. The next prime is 10820137. The reversal of 10820123 is 32102801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32102801 = 743 ⋅43207.

It is a cyclic number.

It is not a de Polignac number, because 10820123 - 2¹⁰ = 10819099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10820113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39353 + ... + 39626.

It is an arithmetic number, because the mean of its divisors is an integer number (2724810).

Almost surely, 2^10820123 is an apocalyptic number.

10820123 is a deficient number, since it is larger than the sum of its proper divisors (79117).

10820123 is an equidigital number, since it uses as much as digits as its factorization.

10820123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79116.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 10820123 is about 3289.3955371770. The cubic root of 10820123 is about 221.1790894933.

Adding to 10820123 its reverse (32102801), we get a palindrome (42922924).

The spelling of 10820123 in words is "ten million, eight hundred twenty thousand, one hundred twenty-three".