103126123 has 4 divisors (see below), whose sum is σ = 103451760. Its totient is φ = 102800488.

The previous prime is 103126109. The next prime is 103126189. The reversal of 103126123 is 321621301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321621301 = 4651 ⋅69151.

It is a cyclic number.

It is not a de Polignac number, because 103126123 - 2⁹ = 103125611 is a prime.

It is a super-2 number, since 2×103126123² = 21269994490022258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103126123.

It is not an unprimeable number, because it can be changed into a prime (103120123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162343 + ... + 162976.

It is an arithmetic number, because the mean of its divisors is an integer number (25862940).

Almost surely, 2^103126123 is an apocalyptic number.

103126123 is a deficient number, since it is larger than the sum of its proper divisors (325637).

103126123 is an equidigital number, since it uses as much as digits as its factorization.

103126123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325636.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 103126123 is about 10155.1032983422. The cubic root of 103126123 is about 468.9460660562.

Adding to 103126123 its reverse (321621301), we get a palindrome (424747424).

The spelling of 103126123 in words is "one hundred three million, one hundred twenty-six thousand, one hundred twenty-three".