103123030021 has 8 divisors (see below), whose sum is σ = 112529031264. Its totient is φ = 93722225520.

The previous prime is 103123029983. The next prime is 103123030033. The reversal of 103123030021 is 120030321301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103123030021 - 2¹⁵ = 103122997253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103123029977 and 103123030004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103123030061) 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 7 ways as a sum of consecutive naturals, for example, 1257631 + ... + 1337116.

It is an arithmetic number, because the mean of its divisors is an integer number (14066128908).

Almost surely, 2^103123030021 is an apocalyptic number.

103123030021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

103123030021 is a deficient number, since it is larger than the sum of its proper divisors (9406001243).

103123030021 is a wasteful number, since it uses less digits than its factorization.

103123030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2598371.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 103123030021 its reverse (120030321301), we get a palindrome (223153351322).

The spelling of 103123030021 in words is "one hundred three billion, one hundred twenty-three million, thirty thousand, twenty-one".