1242303433 has 4 divisors (see below), whose sum is σ = 1419775360. Its totient is φ = 1064831508.

The previous prime is 1242303431. The next prime is 1242303463. The reversal of 1242303433 is 3343032421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3343032421 = 3877 ⋅862273.

It is a cyclic number.

It is not a de Polignac number, because 1242303433 - 2¹ = 1242303431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1242303398 and 1242303407.

It is not an unprimeable number, because it can be changed into a prime (1242303431) 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, 88735953 + ... + 88735966.

It is an arithmetic number, because the mean of its divisors is an integer number (354943840).

Almost surely, 2^1242303433 is an apocalyptic number.

It is an amenable number.

1242303433 is a deficient number, since it is larger than the sum of its proper divisors (177471927).

1242303433 is an equidigital number, since it uses as much as digits as its factorization.

1242303433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177471926.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 1242303433 is about 35246.3250992213. The cubic root of 1242303433 is about 1075.0018916138.

Adding to 1242303433 its reverse (3343032421), we get a palindrome (4585335854).

The spelling of 1242303433 in words is "one billion, two hundred forty-two million, three hundred three thousand, four hundred thirty-three".