1242124103 has 8 divisors (see below), whose sum is σ = 1355354256. Its totient is φ = 1128945600.

The previous prime is 1242124097. The next prime is 1242124129. The reversal of 1242124103 is 3014212421.

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

It is a cyclic number.

It is not a de Polignac number, because 1242124103 - 2¹⁰ = 1242123079 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 (1242129103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51275 + ... + 71507.

It is an arithmetic number, because the mean of its divisors is an integer number (169419282).

Almost surely, 2^1242124103 is an apocalyptic number.

1242124103 is a deficient number, since it is larger than the sum of its proper divisors (113230153).

1242124103 is a wasteful number, since it uses less digits than its factorization.

1242124103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25825.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1242124103 is about 35243.7810542513. The cubic root of 1242124103 is about 1074.9501626075.

Adding to 1242124103 its reverse (3014212421), we get a palindrome (4256336524).

The spelling of 1242124103 in words is "one billion, two hundred forty-two million, one hundred twenty-four thousand, one hundred three".