1242242323 has 16 divisors (see below), whose sum is σ = 1469937664. Its totient is φ = 1027313280.

The previous prime is 1242242317. The next prime is 1242242327. The reversal of 1242242323 is 3232422421.

It is not a de Polignac number, because 1242242323 - 2²¹ = 1240145171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242242327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64636 + ... + 81622.

It is an arithmetic number, because the mean of its divisors is an integer number (91871104).

Almost surely, 2^1242242323 is an apocalyptic number.

1242242323 is a deficient number, since it is larger than the sum of its proper divisors (227695341).

1242242323 is a wasteful number, since it uses less digits than its factorization.

1242242323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17362.

The product of its digits is 4608, while the sum is 25.

The square root of 1242242323 is about 35245.4581896732. The cubic root of 1242242323 is about 1074.9842645615.

Adding to 1242242323 its reverse (3232422421), we get a palindrome (4474664744).

It can be divided in two parts, 12422 and 42323, that added together give a palindrome (54745).

The spelling of 1242242323 in words is "one billion, two hundred forty-two million, two hundred forty-two thousand, three hundred twenty-three".