1242312044 has 6 divisors (see below), whose sum is σ = 2174046084. Its totient is φ = 621156020.

The previous prime is 1242312023. The next prime is 1242312047. The reversal of 1242312044 is 4402132421.

It is not an unprimeable number, because it can be changed into a prime (1242312047) 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 as a sum of consecutive naturals, namely, 155289002 + ... + 155289009.

It is an arithmetic number, because the mean of its divisors is an integer number (362341014).

Almost surely, 2^1242312044 is an apocalyptic number.

It is an amenable number.

1242312044 is a deficient number, since it is larger than the sum of its proper divisors (931734040).

1242312044 is a wasteful number, since it uses less digits than its factorization.

1242312044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310578015 (or 310578013 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1242312044 is about 35246.4472535886. The cubic root of 1242312044 is about 1075.0043753923.

Adding to 1242312044 its reverse (4402132421), we get a palindrome (5644444465).

The spelling of 1242312044 in words is "one billion, two hundred forty-two million, three hundred twelve thousand, forty-four".