1242200303 has 4 divisors (see below), whose sum is σ = 1248636768. Its totient is φ = 1235763840.

The previous prime is 1242200269. The next prime is 1242200341. The reversal of 1242200303 is 3030022421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3030022421 = 17 ⋅178236613.

It is a cyclic number.

It is not a de Polignac number, because 1242200303 - 2²² = 1238005999 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 (1242200363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3217943 + ... + 3218328.

It is an arithmetic number, because the mean of its divisors is an integer number (312159192).

Almost surely, 2^1242200303 is an apocalyptic number.

1242200303 is a deficient number, since it is larger than the sum of its proper divisors (6436465).

1242200303 is an equidigital number, since it uses as much as digits as its factorization.

1242200303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6436464.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1242200303 is about 35244.8620794578. The cubic root of 1242200303 is about 1074.9721436445.

Adding to 1242200303 its reverse (3030022421), we get a palindrome (4272222724).

The spelling of 1242200303 in words is "one billion, two hundred forty-two million, two hundred thousand, three hundred three".