1242202023 has 12 divisors (see below), whose sum is σ = 1852172608. Its totient is φ = 801420480.

The previous prime is 1242201991. The next prime is 1242202063. The reversal of 1242202023 is 3202022421.

It is not a de Polignac number, because 1242202023 - 2⁵ = 1242201991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1242201987 and 1242202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242202063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2225890 + ... + 2226447.

Almost surely, 2^1242202023 is an apocalyptic number.

1242202023 is a deficient number, since it is larger than the sum of its proper divisors (609970585).

1242202023 is a wasteful number, since it uses less digits than its factorization.

1242202023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452374 (or 4452371 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1242202023 is about 35244.8864801690. The cubic root of 1242202023 is about 1074.9726397940.

Adding to 1242202023 its reverse (3202022421), we get a palindrome (4444224444).

The spelling of 1242202023 in words is "one billion, two hundred forty-two million, two hundred two thousand, twenty-three".