1242103133 has 8 divisors (see below), whose sum is σ = 1282609920. Its totient is φ = 1201623840.

The previous prime is 1242103127. The next prime is 1242103171. The reversal of 1242103133 is 3313012421.

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 1242103133 - 2¹⁰ = 1242102109 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 (1242103123) 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, 126041 + ... + 135537.

It is an arithmetic number, because the mean of its divisors is an integer number (160326240).

Almost surely, 2^1242103133 is an apocalyptic number.

It is an amenable number.

1242103133 is a deficient number, since it is larger than the sum of its proper divisors (40506787).

1242103133 is an equidigital number, since it uses as much as digits as its factorization.

1242103133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13747.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1242103133 is about 35243.4835537011. The cubic root of 1242103133 is about 1074.9441133377.

Adding to 1242103133 its reverse (3313012421), we get a palindrome (4555115554).

The spelling of 1242103133 in words is "one billion, two hundred forty-two million, one hundred three thousand, one hundred thirty-three".